Using kmail 4.7.4.

I was selecting a different folder in the folder view.
akonadi_mixedmaildir_resource crashed.
Backtrace:

Application: Mail vom Typ KMail-Maildir (akonadi_mixedmaildir_resource), signal: Segmentation fault
32	      return INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL);
[KCrash Handler]
#4  0x00007fc069830418 in _wordcopy_bwd_dest_aligned () from /lib64/libc.so.6
#5  0x00007fc069829e07 in __memmove_sse2 () from /lib64/libc.so.6
#6  0x00007fc06d3a7731 in KMBox::MBox::purge (this=0x9d8418, deletedEntries=..., movedEntries=0x7fff924bd460) at /usr/src/packages/BUILD/kdepimlibs-4.7.4/kmbox/mbox.cpp:381
#7  0x000000000043ad37 in MBoxContext::purge (this=0x9d8400, movedEntries=...) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/resources/mixedmaildir/mixedmaildirstore.cpp:174
#8  0x0000000000438c47 in MixedMaildirStore::Private::visit (this=0x6f12f0, job=0x713b90) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/resources/mixedmaildir/mixedmaildirstore.cpp:2186
#9  0x00007fc06e3acb18 in Akonadi::FileStore::StoreCompactJob::accept (this=0x713b90, visitor=0x6f12f0) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/resources/shared/filestore/storecompactjob.cpp:54
#10 0x000000000043979b in MixedMaildirStore::processJob (this=0x6daf00, job=0x713b90) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/resources/mixedmaildir/mixedmaildirstore.cpp:2277
#11 0x00007fc06e39ec08 in Akonadi::FileStore::AbstractLocalStore::Private::processJobs (this=0x811fe0, jobs=...) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/resources/shared/filestore/abstractlocalstore.cpp:295
#12 0x00007fc06e3a4e8b in Akonadi::FileStore::AbstractLocalStore::qt_metacall (this=0x6daf00, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff924bd740) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/build/resources/shared/filestore/abstractlocalstore.moc:75
#13 0x0000000000439e74 in MixedMaildirStore::qt_metacall (this=0x6daf00, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7fff924bd740) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/build/resources/mixedmaildir/mixedmaildirstore.moc:66
#14 0x00007fc06a64059a in QMetaObject::activate (sender=0x6e18a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff924bd740) at kernel/qobject.cpp:3287
#15 0x00007fc06e3ab733 in Akonadi::FileStore::AbstractJobSession::jobsReady (this=0x6e18a0, _t1=...) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/build/resources/shared/filestore/session_p.moc:85
#16 0x00007fc06e3ac02c in Akonadi::FileStore::FiFoQueueJobSession::Private::runNextJob (this=0x712aa0) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/resources/shared/filestore/sessionimpls.cpp:142
#17 0x00007fc06e3abad5 in Akonadi::FileStore::FiFoQueueJobSession::qt_metacall (this=0x6e18a0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff924bd810) at /usr/src/packages/BUILD/kdepim-runtime-4.7.4/build/resources/shared/filestore/sessionimpls_p.moc:73
#18 0x00007fc06a64059a in QMetaObject::activate (sender=0x712ab0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3287
#19 0x00007fc06a643e79 in QObject::event (this=0x712ab0, e=<optimized out>) at kernel/qobject.cpp:1190
#20 0x00007fc06b264c54 in notify_helper (e=0x7fff924bdf10, receiver=0x712ab0, this=0x6878d0) at kernel/qapplication.cpp:4481
#21 QApplicationPrivate::notify_helper (this=0x6878d0, receiver=0x712ab0, e=0x7fff924bdf10) at kernel/qapplication.cpp:4453
#22 0x00007fc06b269ae1 in QApplication::notify (this=0x7fff924be2b0, receiver=0x712ab0, e=0x7fff924bdf10) at kernel/qapplication.cpp:4360
#23 0x00007fc06bf781e6 in KApplication::notify (this=0x7fff924be2b0, receiver=0x712ab0, event=0x7fff924bdf10) at /usr/src/packages/BUILD/kdelibs-4.7.4/kdeui/kernel/kapplication.cpp:311
#24 0x00007fc06a62d81c in QCoreApplication::notifyInternal (this=0x7fff924be2b0, receiver=0x712ab0, event=0x7fff924bdf10) at kernel/qcoreapplication.cpp:787
#25 0x00007fc06a65a398 in sendEvent (event=0x7fff924bdf10, receiver=<optimized out>) at kernel/qcoreapplication.h:215
#26 QTimerInfoList::activateTimers (this=0x68a9c0) at kernel/qeventdispatcher_unix.cpp:618
#27 0x00007fc06a657b84 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#28 0x00007fc064f0458d in ?? ()
#29 0x000000000068ace0 in ?? ()
#30 0x00007fff924be030 in ?? ()
#31 0x00007fc06a657b70 in ?? () at kernel/qeventdispatcher_glib.cpp:170 from /usr/src/packages/BUILD/qt-everywhere-opensource-src-4.7.4/lib/libQtCore.so.4
#32 0x0000000000000000 in ?? ()


Reproducible: Didn't try

Steps to Reproduce:
1. Select a different folder in kmail.