Steps to reproduce:
This is an issue found in PR #627
1. Create an event, group or ACL
2. You get the green notification that the event, group and or ACL has been created
3. In the past these notifications where removed after a while. Now they are piling up until I select the X or reload the admin UI. They even stay if I change the area (events, users, ...)
Is this an intended new behavior? Is there a max. number of notifications that queue up there.