[BUGFIX] Support for workspaces

Resolves: #53192
Change-Id: I152884f8d94fbd40dd37611c799f776eb7b000a6
Reviewed-on: http://review.typo3.org/35355
Reviewed-by: Armin Ruediger Vieweg <armin@v.ieweg.de>
Tested-by: Armin Ruediger Vieweg <armin@v.ieweg.de>