I created a rule in kwin to remove borders on windows at launch.
(systemsettings -> window behaviour -> kwin rules
-> new rule
[no title and no borders ] ; apply initially ; yes
and now, when I open an application, it is displayed on all activities
unlike the normal behaviour (with borders) where it is only displayed on the current activity.
Borders should only be related to a window's appearance and they should not modify wheter a window is linked to an activity or all activites.
Steps to Reproduce:
1. create a new kwin rule which remove borders
2. create 2 activities
3. open an application
4. switch to the other activty
5. the application is on the activity (all activities)
the window is displayed on all activities
the window should be displayed on the current activty
*** This bug has been marked as a duplicate of bug 274931 ***