Author: mike.lifeguard+bugs
Description:
If a bad regex exists in the blacklist (you cannot enter new bad regexes, as the page will not be saved, but old ones may remain), at least part of the blacklist don't get applied properly. I had thought that the regex of each line was joined together to make a big one, and bad regexes were split out & ignored. However, that would mean all /good/ regexes should be applied - that did not occur in this case.
You can see a supposedly-blacklisted domain added here: http://en.wikipedia.org/w/index.php?title=MediaWiki_talk:Spam-blacklist&diff=230441961&oldid=230437845
Version: unspecified
Severity: major
URL: http://en.wikipedia.org/w/index.php?title=MediaWiki_talk:Spam-blacklist&oldid=230596968#bugs_in_list