commit a1eda96bc07b26b56d68c31e6b9e63fc96a8808f
Author: Jan Dankert 
Date:   Tue Sep 29 23:28:38 2020 +0200

    Fix: Only warn, if another (!) user has changed a edited value.

 modules/cms/action/PageelementAction.class.php |  9 +++----
 modules/cms/model/Pageelement.class.php        |  5 ++++
 modules/cms/model/Value.class.php              | 35 +++++++++++++++++++++++---
 3 files changed, 41 insertions(+), 8 deletions(-)