Fix #493 - send email copy of work group (AG) messages to the sender
Closes #493 (closed)
What does this MR do?
Requires !773 (merged). Adds user contacting a work group (AG) to the recipients list so they'll get a copy of their own message as well.
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))