Bug 474783

Summary: Task switcher has empty windowClass and is wrongly animated by window open/close effects
Product: [Plasma] kwin Reporter: Kirikaze Chiyuki <ydz>
Component: tabboxAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: minor CC: kimiblock, nate
Priority: NOR Keywords: wayland-only
Version First Reported In: 5.27.8   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=457913
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Kirikaze Chiyuki 2023-09-22 07:59:24 UTC
SUMMARY

STEPS TO REPRODUCE
1. Alt+Tab in Plasma Wayland session

OBSERVED RESULT
Task switcher shows without window opening / closing animation

EXPECTED RESULT
Task switcher is animated and its windowClass is an empty string ("")
(Adding the empty string to the "blacklist" of window open / close effect scripts may also cause other problems ..? untested)

SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Comment 1 Nate Graham 2023-09-22 20:43:58 UTC
Can confirm. Possibly also the cause of Bug 457913?
Comment 2 Vlad Zahorodnii 2025-07-10 10:43:58 UTC

*** This bug has been marked as a duplicate of bug 457913 ***