### Steps to reproduce

Begin of the deletion Tentative steps, not needing the 'end series after' criteria to be updated:

End of the deletion 1. Create meeting series starting tomorrow with 7 scheduled, but do not create any occurrences

2. Update meeting to start either today or before today


### What is the buggy behavior?

* Less than 7 occurrences are visible


### What is the expected behavior?

1. Begin of the insertionChanging the start date to a past date is disabled, thus always showing theEnd of the insertion Begin of the deletion TheEnd of the deletion correct Begin of the insertionnumber of occurrencesEnd of the insertion Begin of the deletion count should be visibleEnd of the deletion