[spaces] Expiration date on group members missing

[hurradieweltgehtunter]

Steps to reproduce

1. Go to files -> spaces
2. Right click on space -> members
3. Invite group as member
4. Set expiration date
5. Click "Add"
6. Open context menu of added group

Expected behaviour

As used from invited persons, the set expiration date is deletable and editable

Actual behaviour

The calendar icon is displayed when an expiration date is set when adding the group as member. But the expiration date is not editable or deletable.

Addition: It is also not possible to add an expiration date to already added groups (possible for persons)

Environment general

https://ocis.ocis-wopi.latest.owncloud.works/

[JammingBen]

Closing as duplicate of #8419.