Version:           1.0 (using KDE 4.6.3) 
OS:                Linux

After the upgrade (aka clean F15 install, using previous /home partition from F13) results in being unable to change language settings.

Versions:

kdebase.x86_64                        6:4.6.3-1.fc15     @updates          
kdebase-libs.x86_64                   6:4.6.3-1.fc15     @updates          
kdebase-runtime.x86_64                4.6.3-1.fc15       @updates          
kdebase-runtime-debuginfo.x86_64      4.6.3-1.fc15       @updates-debuginfo
kdebase-runtime-flags.noarch          4.6.3-1.fc15       @updates          
kdebase-runtime-libs.x86_64           4.6.3-1.fc15       @updates          
kdebase-workspace.x86_64              4.6.3-5.fc15       @updates          
kdebase-workspace-debuginfo.x86_64    4.6.3-5.fc15       @updates-debuginfo
kdebase-workspace-libs.x86_64         4.6.3-5.fc15       @updates         

kde-settings.noarch              4.6-10.fc15   @koji-override-0/$releasever
kde-settings-kdm.noarch          4.6-10.fc15   @koji-override-0/$releasever
kde-settings-pulseaudio.noarch   4.6-10.fc15   @koji-override-0/$releasever
xsettings-kde.x86_64             0.12-3.fc15   @koji-override-0/$releasever


Reproducible: Didn't try

Steps to Reproduce:
open system-settings
select "locale" > CRASH

Actual Results:  
system-settings crashes

Expected Results:  
not to crash and be able to change language settings

Application: System Settings (systemsettings), signal: Segmentation fault
82      T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  ref (this=0x51) at /usr/include/QtCore/qatomic_x86_64.h:121
#7  QString (other=..., this=0x7fffd51d7140) at /usr/include/QtCore/qstring.h:729
#8  KCMLocale::dayPeriodText (this=<optimized out>, dayPeriod=<optimized out>) at /usr/src/debug/kdebase-runtime-4.6.3/kcontrol/locale/kcmlocale.cpp:2452
#9  0x00007fa61d284264 in KCMLocale::initAmPmSymbols (this=0x1579070) at /usr/src/debug/kdebase-runtime-4.6.3/kcontrol/locale/kcmlocale.cpp:2513
#10 0x00007fa61d294711 in KCMLocale::initSettingsWidgets (this=0x1579070) at /usr/src/debug/kdebase-runtime-4.6.3/kcontrol/locale/kcmlocale.cpp:674
#11 0x00007fa61d29557e in KCMLocale::load (this=0x1579070) at /usr/src/debug/kdebase-runtime-4.6.3/kcontrol/locale/kcmlocale.cpp:425
#12 0x00007fa62dd3d0f1 in KCModule::qt_metacall (this=0x1579070, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x16df0f0) at /usr/src/debug/kdelibs-4.6.3/x86_64-redhat-linux-gnu/kdeui/kcmodule.moc:89
#13 0x00007fa61d294c50 in KCMLocale::qt_metacall (this=0x1579070, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x16df0f0) at /usr/src/debug/kdebase-runtime-4.6.3/x86_64-redhat-linux-gnu/kcontrol/locale/kcmlocale.moc:201
#14 0x0000003698370a8a in QObject::event (this=0x1579070, e=<optimized out>) at kernel/qobject.cpp:1217
#15 0x000000369c4074db in QWidget::event (this=0x1579070, event=0x16de440) at kernel/qwidget.cpp:8718
#16 0x000000369c3b73d4 in notify_helper (e=0x16de440, receiver=0x1579070, this=0x118c5b0) at kernel/qapplication.cpp:4462
#17 QApplicationPrivate::notify_helper (this=0x118c5b0, receiver=0x1579070, e=0x16de440) at kernel/qapplication.cpp:4434
#18 0x000000369c3bc261 in QApplication::notify (this=0x7fffd51d7ed0, receiver=0x1579070, e=0x16de440) at kernel/qapplication.cpp:4341
#19 0x00007fa62dc9a806 in KApplication::notify (this=0x7fffd51d7ed0, receiver=0x1579070, event=0x16de440) at /usr/src/debug/kdelibs-4.6.3/kdeui/kernel/kapplication.cpp:311
#20 0x000000369835a1bc in QCoreApplication::notifyInternal (this=0x7fffd51d7ed0, receiver=0x1579070, event=0x16de440) at kernel/qcoreapplication.cpp:731
#21 0x000000369835d784 in sendEvent (event=0x16de440, receiver=0x1579070) at kernel/qcoreapplication.h:215
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1162310) at kernel/qcoreapplication.cpp:1372
#23 0x00000036983848c3 in sendPostedEvents () at kernel/qcoreapplication.h:220
#24 postEventSourceDispatch (s=0x118fba0) at kernel/qeventdispatcher_glib.cpp:277
#25 0x00007fa62b7567ed in g_main_dispatch (context=0x118ece0) at gmain.c:2441
#26 g_main_context_dispatch (context=0x118ece0) at gmain.c:3014
#27 0x00007fa62b756fc8 in g_main_context_iterate (context=0x118ece0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3092
#28 0x00007fa62b75725c in g_main_context_iteration (context=0x118ece0, may_block=1) at gmain.c:3155
#29 0x0000003698384d1f in QEventDispatcherGlib::processEvents (this=0x1163a00, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#30 0x000000369c459f2e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#31 0x00000036983596d2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00000036983598cf in QEventLoop::exec (this=0x7fffd51d7e60, flags=...) at kernel/qeventloop.cpp:201
#33 0x000000369835da17 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#34 0x000000000040ac55 in main (argc=5, argv=0x7fffd51d8198) at /usr/src/debug/kdebase-workspace-4.6.3/systemsettings/app/main.cpp:49