TYPO3 Core

If im trying to change the sorting of any custom table with enabled versioning i get the following error message:

Move attempt failed due to workspace restrictions: Record could not be edited in workspace: Online record was not in versionized branch! // Could not insert record from table "mytablename" in destination PID "2"

Works for tt_content and pages but not for any custom table.

Typo3 4.5 and 4.6

Steps to reproduce: Switch to draft mode -> list module -> change order of any table (backend_layout for instance).

If this is just a missing feature it would be better if sorting icons are not visible or the error message is more understandable.