2.6.7: [2.6] Rollback the fix for bug 411013 (#459)
* Revert "Bug 411013: Entities in persistene context get validated on commit ev… (#270) (#271)" This reverts commit 95176b96d7f04e6a4585b59fa2943a9cb624060b. * Revert "[2.6] Bug 411013: Entities in persistence context get validated on commit even when unchanged (#248) (#252)" This reverts commit 4318a80e71568cd41f7f78217a970d577150328a. * update copyrights Signed-off-by: Lukas Jungmann <[email protected]>