Created attachment 158969 [details]
foto

SUMMARY

The tab in the grouping widget is not deleted. After the notification appears, the tab becomes empty, but has a name. After the notification disappears, the tab name disappears, but the tab remains empty.

STEPS TO REPRODUCE
1. Click on the desktop -> Add widgets -> In the window that opens, select the "Grouping widget" and drop it to the desktop.
2. Click on the desktop -> Add widgets -> In the window that opens, select any widget -> Drag the "Grouping Widget" to the widget window on the desktop (add several widgets).
3. Click on one of the widget tabs in the "Grouping Widget" widget area on the desktop -> Delete Widget.


OBSERVED RESULT
An empty tab with the widget name remains, a notification about deletion appears.

EXPECTED RESULT
The tomb of the selected widget is deleted, a notification about deletion appears.


SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.27
KDE Plasma Version:  5.27.5
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
Graphics Platform: X11

ADDITIONAL INFORMATION
1. After the deletion notification disappears from the desktop, the name of the empty tab disappears in the "Grouping Widget" widget area on the desktop, but the empty tab remains.