Fix setting view type attribute on Tab
Set nothing if there is no current tab and use the correct attribute to retrieve the current view type.
Closes #13192 (closed)
This instance will be upgraded to Heptapod 18.5.1 on 2025-11-13 between 17:00 and 18:00 UTC+2
Set nothing if there is no current tab and use the correct attribute to retrieve the current view type.
Closes #13192 (closed)