Dear Maintainer,

   * What led up to the situation?

1) Start creating an archive (select a bunch of files, right-click and
select "Compress" > "Here as XXX.tar.gz"

2) Whilst archive is being created move to a different desktop

3) When archive has finished being created a notification pops up and at
the same time it moves the Dolphin window to the current desktop

   * What outcome did you expect instead?

The Dolphin should remain at whichever desktop it was on and should not
move to a different desktop.