crash doing zoom with mouse wheel

Doing zoom with control key and mouse wheel crashed with the following backtrace dumped to log:

Process 20223 (qtcreator) of user 1000 dumped core.

Stack trace of thread 20223:
#0 0x00007fb004cf10c0 _ZNK5QFont10pointSizeFEv (libQt5Gui.so.5)
#1 0x00007faff4679f81 _ZNK4Core12OutputWindow8fontZoomEv (libCore.so)
#2 0x00007faff467a063 _ZN4Core12OutputWindow11setBaseFontERK5QFont (libCore.so)
#3 0x00007fafe20d9ff1 _ZN9QtPrivate18QFunctorSlotObjectIZN15ProjectExplorer8Internal13AppOutputPane21createNe>
#4 0x00007fb004035f16 _ZN11QMetaObject8activateEP7QObjectiiPPv (libQt5Core.so.5)
#5 0x00007fafe284b472 _ZN10TextEditor18TextEditorSettings19fontSettingsChangedERKNS_12FontSettingsE (libTextE>
#6 0x00007fb004035f16 _ZN11QMetaObject8activateEP7QObjectiiPPv (libQt5Core.so.5)
#7 0x00007fafe284abb2 _ZN10TextEditor16FontSettingsPage7changedERKNS_12FontSettingsE (libTextEditor.so)
#8 0x00007fb004042776 _ZN16QSingleShotTimer10timerEventEP11QTimerEvent (libQt5Core.so.5)
#9 0x00007fb004036b1b _ZN7QObject5eventEP6QEvent (libQt5Core.so.5)
#10 0x00007fb00549ce9c _ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#11 0x00007fb0054a3fa0 _ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#12 0x00007fb004008ea8 _ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#13 0x00007fb004060649 _ZN14QTimerInfoList14activateTimersEv (libQt5Core.so.5)
#14 0x00007fb004060e21 ZL19timerSourceDispatchP8_GSourcePFiPvES1 (libQt5Core.so.5)
#15 0x00007fb0009a7cf4 g_main_context_dispatch (libglib-2.0.so.0)
#16 0x00007fb0009a9b11 n/a (libglib-2.0.so.0)
#17 0x00007fb0009a9b51 g_main_context_iteration (libglib-2.0.so.0)
#18 0x00007fb00406118f _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (li>
#19 0x00007fb004007902 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#20 0x00007fb004010260 _ZN16QCoreApplication4execEv (libQt5Core.so.5)
#21 0x000000000040a84e main (qtcreator)
#22 0x00007fb0037b5ee3 __libc_start_main (libc.so.6)
#23 0x000000000040a9dc _start (qtcreator)

Stack trace of thread 20230:
#0 0x00007fb003880667 __poll (libc.so.6)
#1 0x00007fb0009a9a80 n/a (libglib-2.0.so.0)
#2 0x00007fb0009a9b51 g_main_context_iteration (libglib-2.0.so.0)
#3 0x00007fb00406118f _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (li>
#4 0x00007fb004007902 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#5 0x00007fb003e3053c _ZN7QThread4execEv (libQt5Core.so.5)
#6 0x00007fafff7aec15 _ZN22QDBusConnectionManager3runEv (libQt5DBus.so.5)
#7 0x00007fb003e31a73 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5)
#8 0x00007fb003ca557f start_thread (libpthread.so.0)
#9 0x00007fb00388b0e3 __clone (libc.so.6)

Stack trace of thread 20235:
#0 0x00007fb003880667 __poll (libc.so.6)
#1 0x00007fb0009a9a80 n/a (libglib-2.0.so.0)
#2 0x00007fb0009a9b51 g_main_context_iteration (libglib-2.0.so.0)
#3 0x00007fb00406118f _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (li>
#4 0x00007fb004007902 _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#5 0x00007fb003e3053c _ZN7QThread4execEv (libQt5Core.so.5)
#6 0x00007fb003e31a73 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5)
#7 0x00007fb003ca557f start_thread (libpthread.so.0)
#8 0x00007fb00388b0e3 __clone (libc.so.6)

Stack trace of thread 20225:
#0 0x00007fb003880667 __poll (libc.so.6)
#1 0x00007fb0009a9a80 n/a (libglib-2.0.so.0)
#2 0x00007fb0009a9b51 g_main_context_iteration (libglib-2.0.so.0)
#3 0x00007fb0009a9ba2 n/a (libglib-2.0.so.0)
#4 0x00007fb000986a31 n/a (libglib-2.0.so.0)
#5 0x00007fb003ca557f start_thread (libpthread.so.0)
#6 0x00007fb00388b0e3 __clone (libc.so.6)

Stack trace of thread 20224:
#0 0x00007fb003880667 __poll (libc.so.6)
#1 0x00007fb00065e630 n/a (libxcb.so.1)
#2 0x00007fb0006602db xcb_wait_for_event (libxcb.so.1)
#3 0x00007fafffba3168 _ZN14QXcbEventQueue3runEv (libQt5XcbQpa.so.5)
#4 0x00007fb003e31a73 _ZN14QThreadPrivate5startEPv (libQt5Core.so.5)
#5 0x00007fb003ca557f start_thread (libpthread.so.0)
#6 0x00007fb00388b0e3 __clone (libc.so.6)

Stack trace of thread 20229:
#0 0x00007fb003cab415 pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
#1 0x00007faff5761ebc n/a (i965_dri.so)
#2 0x00007faff5761ab8 n/a (i965_dri.so)
#3 0x00007fb003ca557f start_thread (libpthread.so.0)
#4 0x00007fb00388b0e3 __clone (libc.so.6)

Stack trace of thread 20227:
#0 0x00007fb003880667 __poll (libc.so.6)
#1 0x00007fb0009a9a80 n/a (libglib-2.0.so.0)
#2 0x00007fb0009aaa63 g_main_loop_run (libglib-2.0.so.0)
#3 0x00007faffdb559c8 n/a (libgio-2.0.so.0)
#4 0x00007fb000986a31 n/a (libglib-2.0.so.0)
#5 0x00007fb003ca557f start_thread (libpthread.so.0)
#6 0x00007fb00388b0e3 __clone (libc.so.6)

Stack trace of thread 20233: