commit 7f66c869b79299961078761cfdefb4e82664103a
Author: Lukas K. <lu@0x83.eu>
Date:   Wed Mar 20 23:44:31 2024 +0100

    property panels: fix use-after free
    
    by disconnecting signals at the right point in time
    
    fixes #579
    
    changelog: Bugfixes/Schematic Editor: don't throw an exception when
    changing sheets while string property has focus
