Version:           4.1.2 (using KDE 4.1.2)
Compiler:          64bit 
OS:                Linux
Installed from:    Ubuntu Packages

When I doubleclick a zipped folder Dolphin opens that folder. Ok. Then, when I click on the folder above the zipped one Dolphine crashes:

[KCrash handler]
#5  0x00007f83e4323095 in raise () from /lib/libc.so.6
#6  0x00007f83e4324af0 in abort () from /lib/libc.so.6
#7  0x00007f83e61d5055 in qt_message_output () from /usr/lib/libQtCore.so.4
#8  0x00007f83e61d519d in qFatal () from /usr/lib/libQtCore.so.4
#9  0x00007f83e70be8e8 in ?? () from /usr/lib/kde4/lib/libkio.so.5
#10 0x00007f83e70bec3f in KDirModel::indexForUrl ()
   from /usr/lib/kde4/lib/libkio.so.5
#11 0x00007f83e76b8493 in DolphinView::restoreCurrentItem ()
   from /usr/lib/kde4/lib/libdolphinprivate.so.4
#12 0x00007f83e76b8a5f in DolphinView::qt_metacall ()
   from /usr/lib/kde4/lib/libdolphinprivate.so.4
#13 0x00007f83e62d28b6 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#14 0x00007f83e70b6aef in ?? () from /usr/lib/kde4/lib/libkio.so.5
#15 0x00007f83e70b4a07 in KDirLister::Private::CachedItemsJob::done ()
   from /usr/lib/kde4/lib/libkio.so.5
#16 0x00007f83e70b4a65 in KDirLister::Private::CachedItemsJob::qt_metacall ()
   from /usr/lib/kde4/lib/libkio.so.5
#17 0x00007f83e62cd497 in QObject::event () from /usr/lib/libQtCore.so.4
#18 0x00007f83e505cacf in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#19 0x00007f83e505ec85 in QApplication::notify () from /usr/lib/libQtGui.so.4
#20 0x00007f83e6bd51f1 in KApplication::notify ()
   from /usr/lib/kde4/lib/libkdeui.so.5
#21 0x00007f83e62be6b9 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#22 0x00007f83e62bf9db in QCoreApplicationPrivate::sendPostedEvents ()
   from /usr/lib/libQtCore.so.4
#23 0x00007f83e62e76e3 in ?? () from /usr/lib/libQtCore.so.4
#24 0x00007f83e13ae364 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#25 0x00007f83e13b1675 in ?? () from /usr/lib/libglib-2.0.so.0
#26 0x00007f83e13b1b5b in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#27 0x00007f83e62e79df in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#28 0x00007f83e50e620f in ?? () from /usr/lib/libQtGui.so.4
#29 0x00007f83e62bdb35 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#30 0x00007f83e62bdc8b in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#31 0x00007f83e62bfcd9 in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#32 0x000000000043c09e in ?? ()
#33 0x00007f83e430f1c4 in __libc_start_main () from /lib/libc.so.6
#34 0x0000000000420889 in _start ()
#0  0x00007f83e438eb50 in nanosleep () from /lib/libc.so.6