[BUGFIX] Support for workspaces

Resolves: #53192
Change-Id: I48cc891780d76a45f229b8e1e01ddbd9d322fc5e
Reviewed-on: http://review.typo3.org/35352
Reviewed-by: Armin Ruediger Vieweg <armin@v.ieweg.de>
Tested-by: Armin Ruediger Vieweg <armin@v.ieweg.de>