All headers in search and listing are english and not selected language.

I was able to reproduce this but I have no idea why it's happening. When I refreshed the page a few times, it seemed to fix it. However, when I did this, I didn't notice any queries or anything that would impact this, so I don't really know why this is happening... I'll keep looking though.

Thank you for your bug report. This issue has been closed and fixed in Subversion. This change will be available in a future release, but you can download the change at any time from the Subversion server.