Created attachment 131890 [details] backtrace of the crash SUMMARY When the global selection mask is dragged onto another layer in the Layers docker, Krita crashes. In 4.3, the same action converted the global selection into a local selection for the target layer. STEPS TO REPRODUCE 1. Check "Show global selection mask" in the Select menu. 2. Make a selection. 3. In the Layers docker, drag the global selection mask onto another layer. OBSERVED RESULT Segfault. EXPECTED RESULT The global selection is converted into local selection mask.
I can confirm this for the Sep23 4.4.1 alpha (git 604b2ce) appimage. No crash with the 4.3.0 appimage, as noted above. If the global selection mask is deactivated (circle icon at the right of the layer) before being dragged onto a layer, it can be placed on that layer and then becomes a local selection mask that can then be activated with no problem. Note the similarity to https://bugs.kde.org/show_bug.cgi?id=426816 which has recently had a commit to fix.
*** This bug has been marked as a duplicate of bug 426816 ***