SUMMARY
Running Gwenview from kdesrc building for Plasma 6, git: 
0878375b (HEAD -> master, origin/master, origin/HEAD) GIT_SILENT Sync po/docbooks with svn

When trying to open a mutli-image tiff file - saved from a GIMP multiple layers image - gwenview crashes.

This is a regression - gwenview from Neon unstable package 4:23.04.1+p22.04+tunstable+git20230525.0041-0 successfully opens these files.

Here's a backtrace from drkonqi's "interactive debugger" session:

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Core was generated by `gwenview /home/odeda/Documents/mobile/media/Walls/art/unsorted1/Victoria.(Illus'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  wl_proxy_get_version (proxy=0x0) at ../src/wayland-client.c:2248
2248    ../src/wayland-client.c: No such file or directory.
[Current thread is 1 (Thread 0x7f29823d0640 (LWP 2940239))]
(gdb) bt
#0  wl_proxy_get_version (proxy=0x0) at ../src/wayland-client.c:2248
#1  0x00007f298982dbe8 in zwp_pointer_gestures_v1_release (zwp_pointer_gestures_v1=0x0)
    at /home/odeda/kde/build/gwenview/lib/wayland-pointer-gestures-unstable-v1-client-protocol.h:309
#2  0x00007f298982e08c in QtWayland::zwp_pointer_gestures_v1::release (this=0x55b848a93f60)
    at /home/odeda/kde/build/gwenview/lib/qwayland-pointer-gestures-unstable-v1.cpp:85
#3  0x00007f29897ffc5f in Gwenview::WaylandGestures::~WaylandGestures (this=0x55b848a8d220, __in_chrg=<optimized out>)
    at /home/odeda/kde/src/gwenview/lib/waylandgestures/waylandgestures.cpp:92
#4  0x00007f29897ffcac in Gwenview::WaylandGestures::~WaylandGestures (this=0x55b848a8d220, __in_chrg=<optimized out>)
    at /home/odeda/kde/src/gwenview/lib/waylandgestures/waylandgestures.cpp:97
#5  0x00007f298971bc7e in Gwenview::DocumentView::~DocumentView (this=0x55b848022c70, __in_chrg=<optimized out>)
    at /home/odeda/kde/src/gwenview/lib/documentview/documentview.cpp:499
#6  0x00007f298971bd4a in Gwenview::DocumentView::~DocumentView (this=0x55b848022c70, __in_chrg=<optimized out>)
    at /home/odeda/kde/src/gwenview/lib/documentview/documentview.cpp:504
#7  0x00007f29897432da in qDeleteAll<QSet<Gwenview::DocumentView*>::const_iterator> (begin=..., end=...)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qalgorithms.h:27
#8  0x00007f29897422cc in qDeleteAll<QSet<Gwenview::DocumentView*> > (c=...)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qalgorithms.h:35
#9  0x00007f2989741f10 in Gwenview::DocumentViewContainerPrivate::resetSet (this=0x55b8482d6cc0, set=0x55b8482d6ce0)
    at /home/odeda/kde/src/gwenview/lib/documentview/documentviewcontainer.cpp:76
#10 0x00007f29897408c4 in Gwenview::DocumentViewContainer::reset (this=0x55b8482dac20)
    at /home/odeda/kde/src/gwenview/lib/documentview/documentviewcontainer.cpp:145
#11 0x000055b845f1c978 in Gwenview::ViewMainPage::reset (this=0x55b84830b750)
    at /home/odeda/kde/src/gwenview/app/viewmainpage.cpp:786
#12 0x000055b845f5b3ce in Gwenview::MainWindow::openDirUrl (this=0x55b847dc8400, url=...)
    at /home/odeda/kde/src/gwenview/app/mainwindow.cpp:1351
#13 0x000055b845f7043f in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<QUrl const&>, void, void (Gwenview::MainWindow::*)(QUrl const&)>::call (
    f=(void (Gwenview::MainWindow::*)(Gwenview::MainWindow * const, const QUrl &)) 0x55b845f5b0b4 <Gwenview::MainWindow::openDirUrl(QUrl const&)>, o=0x55b847dc8400, arg=0x7ffef8dceb80) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:135
#14 0x000055b845f6f4c9 in QtPrivate::FunctionPointer<void (Gwenview::MainWindow::*)(QUrl const&)>::call<QtPrivate::List<QUrl const&>, void> (
    f=(void (Gwenview::MainWindow::*)(Gwenview::MainWindow * const, const QUrl &)) 0x55b845f5b0b4 <Gwenview::MainWindow::openDirUrl(QUrl const&)>, o=0x55b847dc8400, arg=0x7ffef8dceb80) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:172
#15 0x000055b845f6dafb in QtPrivate::QSlotObject<void (Gwenview::MainWindow::*)(QUrl const&), QtPrivate::List<QUrl const&>, void>::impl (which=1, this_=0x55b8482a1800, r=0x55b847dc8400, a=0x7ffef8dceb80, ret=0x0)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:384
#16 0x00007f298678e1f7 in QtPrivate::QSlotObjectBase::call (a=0x7ffef8dceb80, r=0x55b847dc8400, this=<optimized out>)
    at ./src/corelib/kernel/qobjectdefs_impl.h:363
#17 doActivate<false> (sender=0x55b847b74d20, signal_index=8, argv=0x7ffef8dceb80) at ./src/corelib/kernel/qobject.cpp:3992
#18 0x00007f298936bb1a in KUrlNavigator::urlChanged (this=0x55b847b74d20, _t1=...)
    at /home/odeda/kde/build/kio/src/filewidgets/KF6KIOFileWidgets_autogen/include/moc_kurlnavigator.cpp:391
#19 0x00007f298936526d in operator() (__closure=0x55b8482cf940) at /home/odeda/kde/src/kio/src/filewidgets/kurlnavigator.cpp:198
#20 0x00007f298936eae5 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, KUrlNavigatorPrivate::KUrlNavigatorPrivate(const QUrl&, KUrlNavigator*, KFilePlacesModel*)::<lambda()> >::call(struct {...} &, void **) (f=..., 
    arg=0x7ffef8dced28) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:127
#21 0x00007f298936e6d5 in QtPrivate::Functor<KUrlNavigatorPrivate::KUrlNavigatorPrivate(const QUrl&, KUrlNavigator*, KFilePlacesModel*)::<lambda()>, 0>::call<QtPrivate::List<>, void>(struct {...} &, void *, void **) (f=..., arg=0x7ffef8dced28)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:241
#22 0x00007f298936d9c8 in QtPrivate::QFunctorSlotObject<KUrlNavigatorPrivate::KUrlNavigatorPrivate(const QUrl&, KUrlNavigator*, KFilePlacesModel*)::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (
    which=1, this_=0x55b8482cf930, r=0x55b847b74d20, a=0x7ffef8dced28, ret=0x0)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:409
#23 0x00007f298678e1f7 in QtPrivate::QSlotObjectBase::call (a=0x7ffef8dced28, r=0x55b847b74d20, this=<optimized out>)
    at ./src/corelib/kernel/qobjectdefs_impl.h:363
#24 doActivate<false> (sender=0x55b848157580, signal_index=3, argv=0x7ffef8dced28) at ./src/corelib/kernel/qobject.cpp:3992
#25 0x00007f298954135f in KCoreUrlNavigator::currentLocationUrlChanged (this=0x55b848157580)
    at /home/odeda/kde/build/kio/src/gui/KF6KIOGui_autogen/EWIEGA46WW/moc_kcoreurlnavigator.cpp:379
#26 0x00007f298955904e in KCoreUrlNavigator::setCurrentLocationUrl (this=0x55b848157580, newUrl=...)
    at /home/odeda/kde/src/kio/src/gui/kcoreurlnavigator.cpp:246
#27 0x00007f298936ab7f in KUrlNavigator::setLocationUrl (this=0x55b847b74d20, newUrl=...)
    at /home/odeda/kde/src/kio/src/filewidgets/kurlnavigator.cpp:1063
#28 0x00007f298936637f in KUrlNavigatorPrivate::slotApplyUrl (this=0x55b847fdbe40, url=...)
    at /home/odeda/kde/src/kio/src/filewidgets/kurlnavigator.cpp:311
#29 0x00007f29893666ab in operator() (__closure=0x55b84811e970) at /home/odeda/kde/src/kio/src/filewidgets/kurlnavigator.cpp:371
#30 0x00007f298936efb6 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, KUrlNavigatorPrivate::applyUncommittedUrl()::<lambda()> >::call(struct {...} &, void **) (f=..., arg=0x7ffef8dcf1b0)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:127
#31 0x00007f298936e8f7 in QtPrivate::Functor<KUrlNavigatorPrivate::applyUncommittedUrl()::<lambda()>, 0>::call<QtPrivate::List<>, void>(struct {...} &, void *, void **) (f=..., arg=0x7ffef8dcf1b0)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:241
#32 0x00007f298936e10e in QtPrivate::QFunctorSlotObject<KUrlNavigatorPrivate::applyUncommittedUrl()::<lambda()>, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=1, this_=0x55b84811e960, 
    r=0x55b847b74d20, a=0x7ffef8dcf1b0, ret=0x0) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:409
#33 0x00007f298678e1f7 in QtPrivate::QSlotObjectBase::call (a=0x7ffef8dcf1b0, r=0x55b847b74d20, this=<optimized out>)
    at ./src/corelib/kernel/qobjectdefs_impl.h:363
#34 doActivate<false> (sender=0x55b8482ad1a0, signal_index=6, argv=0x7ffef8dcf1b0) at ./src/corelib/kernel/qobject.cpp:3992
#35 0x00007f2986d48c2f in KJob::result (this=0x55b8482ad1a0, _t1=0x55b8482ad1a0, _t2=...)
    at /home/odeda/kde/build/kcoreaddons/src/lib/KF6CoreAddons_autogen/include/moc_kjob.cpp:823
#36 0x00007f2986d4631d in KJob::finishJob (this=0x55b8482ad1a0, emitResult=true)
    at /home/odeda/kde/src/kcoreaddons/src/lib/jobs/kjob.cpp:98
#37 0x00007f2986d4704b in KJob::emitResult (this=0x55b8482ad1a0) at /home/odeda/kde/src/kcoreaddons/src/lib/jobs/kjob.cpp:329
#38 0x00007f2988b357ee in KIO::SimpleJob::slotFinished (this=0x55b8482ad1a0)
    at /home/odeda/kde/src/kio/src/core/simplejob.cpp:229
#39 0x00007f2988b39c6a in KIO::StatJob::slotFinished (this=0x55b8482ad1a0) at /home/odeda/kde/src/kio/src/core/statjob.cpp:170
#40 0x00007f2988b38b1f in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (KIO::SimpleJob::*)()>::call(void (KIO::SimpleJob::*)(), KIO::SimpleJob*, void**) (f=&virtual KIO::SimpleJob::slotFinished(), o=0x55b8482ad1a0, 
    arg=0x55b848278238) at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:135
#41 0x00007f2988b38839 in QtPrivate::FunctionPointer<void (KIO::SimpleJob::*)()>::call<QtPrivate::List<>, void>(void (KIO::SimpleJob::*)(), KIO::SimpleJob*, void**) (f=&virtual KIO::SimpleJob::slotFinished(), o=0x55b8482ad1a0, arg=0x55b848278238)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:172
#42 0x00007f2988b386c5 in QtPrivate::QSlotObject<void (KIO::SimpleJob::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x55b8482ad260, r=0x55b8482ad1a0, a=0x55b848278238, ret=0x0)
    at /usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs_impl.h:384
#43 0x00007f298678327f in QObject::event (this=0x55b8482ad1a0, e=0x55b8482781f0) at ./src/corelib/kernel/qobject.cpp:1391
#44 0x00007f29877874a6 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x55b8482ad1a0, e=0x55b8482781f0)
    at ./src/widgets/kernel/qapplication.cpp:3284
#45 0x00007f29867370b8 in QCoreApplication::notifyInternal2 (receiver=0x55b8482ad1a0, event=0x55b8482781f0)
    at ./src/corelib/kernel/qcoreapplication.cpp:1115
#46 0x00007f298673727d in QCoreApplication::sendEvent (receiver=<optimized out>, event=<optimized out>)
    at ./src/corelib/kernel/qcoreapplication.cpp:1533
#47 0x00007f298673ab57 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55b847ac5970)
    at ./src/corelib/kernel/qcoreapplication.cpp:1895
--Type <RET> for more, q to quit, c to continue without paging--
#48 0x00007f298673ae10 in QCoreApplication::sendPostedEvents (receiver=<optimized out>, event_type=<optimized out>)
    at ./src/corelib/kernel/qcoreapplication.cpp:1754
#49 0x00007f2986996ac7 in postEventSourceDispatch (s=0x55b847b2db10) at ./src/corelib/kernel/qeventdispatcher_glib.cpp:243
#50 0x00007f29852c649d in g_main_dispatch (context=0x7f297c000f10) at ../../../glib/gmain.c:3460
#51 g_main_context_dispatch (context=0x7f297c000f10) at ../../../glib/gmain.c:4200
#52 0x00007f2985321178 in g_main_context_iterate.constprop.0 (context=0x7f297c000f10, block=<optimized out>, dispatch=1, 
    self=<optimized out>) at ../../../glib/gmain.c:4276
#53 0x00007f29852c51b0 in g_main_context_iteration (context=0x7f297c000f10, may_block=1) at ../../../glib/gmain.c:4343
#54 0x00007f298699632e in QEventDispatcherGlib::processEvents (this=0x55b847aca5b0, flags=...)
    at ./src/corelib/kernel/qeventdispatcher_glib.cpp:393
#55 0x00007f2986743a5b in QEventLoop::exec (this=this@entry=0x7ffef8dcf7f0, flags=..., flags@entry=...)
    at ./src/corelib/global/qflags.h:34
#56 0x00007f298673f8e6 in QCoreApplication::exec () at ./src/corelib/global/qflags.h:74
#57 0x000055b845f57bd6 in main (argc=2, argv=0x7ffef8dcfb08) at /home/odeda/kde/src/gwenview/app/main.cpp:213
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