A deleted agenda item is visible in agenda item list

[reiterl]

Describe the bug
After doing some committee/meeting/motion CRUD stuff, I ran sometimes in the situation,
that I deleted a agenda item but the deleted agenda item is still visible in the agenda item list.

How to Reproduce

Before:

1. Add a committee, edit it, delete it
2. Add a new committee
3. Add a new account, change it, delete it.
4. Add a meeting, edit it, delete it in the new committee
5. Add a new meeting in the new committee, now use this new meeting
6. Add a motion, edit it, add an amendment, change it, delete both with multi select

Then:

1. Create a topic (agenda item) with a description (like "foo")
2. Switch to the detail view of the new topic
3. Edit it and change the description to "bar" and Save
4. Delete the agenda item with delete in three-dot menu.
   => Now you will be redirect to the agenda item list, but there the item is still visible

Expected behavior

A deleted item should not be visible in the list, because interaction with this "zombie" agenda item
leads to errors.

System information

• OpenSlides version: pre 4.3 or demo (4.2.29)

[reiterl]

I have seen this error today, and I also saw that the autoupdate service throws an InternalError after logout.

[reiterl]

I also see this error once on the demo instance.
I tried it 2 times more. There the tests passed.
=> perhaps an older defect.

[Elblinator]

maybe connected to:
#5163