Crash on middle click on a window button in an overflow menu

Submitted by Andrzej

Assigned to Nick Schermer

Link to original bug (#12319)

Description

Created attachment 6535 Stacktrace

I middle-clicked on a window button in an overflow menu (in an attempt to close the window). The result was a panel crash. Stacktrace attached.

Attachment 6535, "Stacktrace":
tasklist_stacktrace.log

Version: 4.12.0