Since Qt 5.12.5 and newer this causes infinite recursion in component creation as setting the model has ListView recreate its header item (among other things) since https://code.qt.io/cgit/qt/qtdeclarative.git/commit/?h=5.12&id=692b2da77427259a3589cf8a1311075863f2f5ec

See also https://bugzilla.redhat.com/show_bug.cgi?id=1758263

5.12 only

• Notifications work again and don't crash*
• Turning on and off history works
• Turning on and off notifications works

I failed to reproduce in a simple test case for submitting a bug report. I tried having a ListView with a header that sets the model and delegate but all I could get was "Cannot create new component instance before completing the previous" but none of the recursion havoc or aborting component creation as in the notification applet :(