Steps to reproduce:
1. Create an event
2. Open event details dialog in the Admin UI
3. Change/select/deselect series
The series update should be reflected in the underlying media package. This include:
media package series (Id) update
media package series title update
series dublincore catalog update/add/remove
series acl update/add/remove
series extended metadata catalogs update/add/remove
The media package series (Id) is updated.
Workaround (if any):
Run an republish workflow with an series operation.
Is this a bug only in develop/5.x, that is 4.x is unaffected?
Yes, 4.x and as I know 3.x are also affected.