"Search term" in bbPress admin doesn't work for Cyrillic words

[SergeyBiryukov]

If you search for "плагин", "тема", "файл" (or any other Cyrillic word commonly used on forums) in bbPress admin on ru.forums.wordpress.org, you'll just get "No posts found".

If the topic has some English words (a plugin name, etc.), you may eventually succeed by searching for them and wading through a lot of unrelated topics, but most of the time you're out of luck.

Combined with #121, it's virtually impossible to find any topic older than a few days, even if you're an administrator and happen to remember the exact keywords.