Order of contents in a group is not retained
When a content group is saved, the order of content IDs is no longer retained.
!363 (merged) fixed ordering for entities only on the controller level under the wrong assumption that the order would not matter on the service level.
Regression-MR: !361 (merged)
Regression-Commit: a4459240
Related: !363 (merged)
Edited by Daniel Gerhardt