Qt Creator and Qt Design Studio crashes when editing QML files

This issue happens both in Qt Creator and Qt Design Studio.

I can reliably reproduce this issue, so I've run Qt Creator with GDB, backtrace and the file I was editing is attached below.

When I try to type `rowLayout.spacing` on the end of line 11 and add a value to the property is when Qt Creator crashed. The property being an alias doesn't effect this, ie if I change its type to an int it still crashes.

Opening the file on its own, not as part of a project still causes a crash.

I've seen QtC crash in similiar manner in the last few days. I tried to reproduce this issue on a Windows install, but Windows version doesn't seem to be effected.

Note: libQt6Core.so is actually not called from system root, but from the folder relative to Qt Creator, I just removed the beggining of the path