Meeting disappears in committee view

[rrenkert]

Describe the bug
When stop sharing a public meeting template in the committee view the meeting disappears. A reload or navigating through other pages brings it back.

How to Reproduce
Steps to reproduce the behavior:

1. Navigate to a committee
2. Share a meeting as a public template
3. Stop sharing the meeting
   -> The meeting is no more visible

Expected behavior
The meeting should stay visible and the star labeling it as public template should disappear.

[rrenkert]

Also happens for archiving meetings.

[bastianjoel]

The problem is, that we have three lists with isExclusiveList set which when moving a meeting from one list to another causes side effects when receiving or processing the delete action after the create action to the view model store.

We have three options here:

1. Keep track about the owner of a view model
2. Move archived_meeting_ids, template_meeting_ids and active_meeting_ids into one property
3. Add the ability to autoupdate service to send delete events

[bastianjoel]

The problem here is just that template_meeting_ids is not an exclusive list and active_meeting_ids always contains the meeting.

[bastianjoel]

But archived_meeting_ids still has this problem.