fixed wrong redirects when following links and then logging in on beta

Closes #563 (closed)

What does this MR do?

see title

How confident are you it won't break things if deployed?

no so much but works for now.

Links to related issues

Checklist

• 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))