crash in VLCProfileSelector::newProfile

I was just clicking around, not expecting anything. Reproducer may go like this:

rm -rfvi ~/.config/vlc
vlc ~/some/dir/*.mp3
<next>
<next>
<next>
<finish>
click on this playlist thing (without tooltip) in the upper right corner
right-click on a song that is not yet playing
select stream from the menu
<next>
select HTTP from the pulldown menu
set "Display locally" checkbox
<next>
click on the "Create a new profile" botton on the right side

backtrace with vlc.git#master snapshots from end of January 2022, such as 950c019b

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f1774e293d4 in QVLCDialog::setWindowTransientParent (p_intf=0x0, parent=0x0, widget=0x558d9621a7a0) at gui/qt/widgets/native/qvlcframe.cpp:225
225             parent = p_intf->p_compositor->interfaceMainWindow();
[Current thread is 1 (Thread 0x7f175eb93700 (LWP 31210))]
(gdb) bt
#0  0x00007f1774e293d4 in QVLCDialog::setWindowTransientParent (p_intf=0x0, parent=0x0, widget=0x558d9621a7a0)
    at gui/qt/widgets/native/qvlcframe.cpp:225
#1  QVLCDialog::QVLCDialog (this=0x558d9621a7a0, parent=0x0, _p_intf=0x0) at gui/qt/widgets/native/qvlcframe.cpp:242
#2  0x00007f1774cdc4d9 in VLCProfileEditor::VLCProfileEditor (this=0x558d9621a7a0, qs_name=..., value=..., _parent=<optimized out>)
    at gui/qt/dialogs/sout/profile_selector.cpp:428
#3  0x00007f1774ce1e3d in VLCProfileSelector::editProfile (this=this@entry=0x558d96176dd0, qs=..., value=...)
    at gui/qt/dialogs/sout/profile_selector.cpp:145
#4  0x00007f1774ce2039 in VLCProfileSelector::newProfile (this=0x558d96176dd0) at gui/qt/dialogs/sout/profile_selector.cpp:133
#5  0x00007f1771c2feb5 in QMetaObject::activate (sender=sender@entry=0x558d96180a10, signalOffset=<optimized out>,
    local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7f175eb90c20) at kernel/qobject.cpp:3804
#6  0x00007f1771c305c7 in QMetaObject::activate (sender=sender@entry=0x558d96180a10,
    m=m@entry=0x7f1773364640 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2,
    argv=argv@entry=0x7f175eb90c20) at kernel/qobject.cpp:3657
#7  0x00007f1772d72ec2 in QAbstractButton::clicked (this=this@entry=0x558d96180a10, _t1=<optimized out>)
    at .moc/moc_qabstractbutton.cpp:312
#8  0x00007f1772d730da in QAbstractButtonPrivate::emitClicked (this=0x558d9617a1a0) at widgets/qabstractbutton.cpp:414
....

Let me know if this is enough to reproduce it on your side.