Application: systemsettings5 (5.3.0)

Qt Version: 5.4.1
Operating System: Linux 4.0.4-303.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
- What I was doing when the application crashed:

1A: When I changed my custom profile icon without saving and instead goes to "KDE Wallet" instead. This gives a prompt for me to save the setting (Change profile picture) and I saved it.

1B: Alternatively, if I saved the setting (Hit the "Apply" button instead), it goes to 2 directly.

2: It showed a prompt "Unable to delete file /home/Username/.face.icon", with the profile picture shows a blue background.

3: It crashed.

4: When I go back to the same setting, the old picture is still there.

- Custom settings of the application:

1: When I changed my current default profile picture of a smiley face to "coregen", or any default picture without preview.

(When I clicked on the default profile picture, I was given a window to select a new image, but it only offer things like: "_impact", "webtalk" and etc.)

2: This issue does not happen when I select my own custom pictures stored on an exFAT partition (So should be normal for ext4 or NTFS picture partition, for example) since there is a preview image on the same window along with "coregen", "impact", "webtalk", etc.

The crash can be reproduced every time.

-- Backtrace:
Application: 系统设置 (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc7b0845840 (LWP 11927))]

Thread 2 (Thread 0x7fc789c1f700 (LWP 11929)):
#0  0x00007fc7a7299530 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007fc789da06d4 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007fc789da0719 in  () at /lib64/libQt5Script.so.5
#3  0x00007fc7a7294555 in start_thread () at /lib64/libpthread.so.0
#4  0x00007fc7aab71f3d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7fc7b0845840 (LWP 11927)):
[KCrash Handler]
#5  0x000000000249f2d0 in  ()
#6  0x00007fc7ab95fe77 in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () at /lib64/libQt5Core.so.5
#7  0x00007fc7ae8b2d26 in KDialogJobUiDelegate::Private::next() () at /lib64/libKF5JobWidgets.so.5
#8  0x00007fc7ab981b11 in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#9  0x00007fc7ad4457cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#10 0x00007fc7ad44ae70 in QApplication::notify(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#11 0x00007fc7ab95024b in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#12 0x00007fc7ab952387 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#13 0x00007fc7ab9a7333 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#14 0x00007fc7a64dfa8a in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#15 0x00007fc7a64dfe20 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#16 0x00007fc7a64dfecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#17 0x00007fc7ab9a773f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#18 0x00007fc7ab94da8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#19 0x00007fc7ab9555fc in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#20 0x000000000040eb2c in main ()

Reported using DrKonqi