I am sorry, but krita crashed again.
(gdb) bt
#0 0x00007ffff52daeb2 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#1 0x00007ffff616bd32 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Widgets.so.5
#2 0x00007ffff7ae864e in KisApplication::notify(QObject*, QEvent*) ()
from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libkritaui.so.20
#3 0x00007ffff52db198 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#4 0x00007ffff5336289 in QTimerInfoList::activateTimers() ()
from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#5 0x00007ffff5336b8c in ?? ()
from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#6 0x00007ffff2b0dd3b in g_main_dispatch (context=0x555555e92910)
at ../../../glib/gmain.c:3419
#7 g_main_context_dispatch (context=0x555555e92910)
at ../../../glib/gmain.c:4137
#8 0x00007ffff2b632b8 in g_main_context_iterate.constprop.0 (
context=context@entry=0x555555e92910, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>)
at ../../../glib/gmain.c:4213
#9 0x00007ffff2b0b3e3 in g_main_context_iteration (context=0x555555e92910,
may_block=1) at ../../../glib/gmain.c:4278
--Type <RET> for more, q to quit, c to continue without paging--
#10 0x00007ffff5336f0a in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#11 0x00007ffff52d9b3b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#12 0x00007ffff52e22f4 in QCoreApplication::exec() () from /tmp/.mount_krita.PMaKal/usr/bin/../lib/libQt5Core.so.5
#13 0x000055555555dab3 in main ()