Resolve "Orga can't leave a store"
Closes #283 (closed)
What does this MR do?
Orga should beable to leave a store, if he is not responsible for it.
How confident are you it won't break things if deployed?
Links to related issues
- added a test, or explain why one is not needed/possible...
- no unrelated changes
- asked someone for a code review
- joined #foodsharing-beta channel at https://slackin.yunity.org
- added an entry to CHANGELOG.md (description, merge request link, username(s))