Wikimedia Bugzilla is closed!

Searching for strings like "10.1016" (DOI prefixes) on some wikis misses articles that should be matched.

For example, searching for this prefix in ns0 of jawiki gives 0 results:

http://ja.wikipedia.org/w/index.php?search=10.1016

A Google search reveals that there are at least 1,290 results (excluding the template namespace) fron jawiki:

http://bit.ly/LZDLzQ
http://ja.wikipedia.org/wiki/ウォルター・エルサッサー

This issue also affects zhwiki and possibly other wikis. It doesn't seem to be a general Unicode bug for non-Latin wikis (as kowiki works as expected, for example) and it doesn't affect most Extended Latin wikis (like enwiki, itwiki, eswiki).