"Segmentation fault (core dumped)" when closing window

[joergmlpts]

I have come across a segmentation fault when the map widget is destroyed (that is, the user closes the window) before all tiles have been updated. I've run Python in gdb and noticed that the fatal occurs in a thread.

I am running Ubuntu 22.04 and the Python 3.10 that comes with it. The issue is best reproduced with a large mapview window and a slow tile server.