Last modified: 2013-11-16 18:41:17 UTC
Special:LinkSearch does not display results for links containing colon Compare: https://cs.wikipedia.org/wiki/Special:LinkSearch/commons.wikimedia.org/wiki/Category and https://cs.wikipedia.org/wiki/Special:LinkSearch/commons.wikimedia.org/wiki/Category: I did not try any other not alphanum chars, but I would assume, that the issue might be in not consistent urlencoding / nourlencoding between the form value and the value stored in database.
Looks like it's actually colon-specific. LinkSearch is assuming anything before the colon is a protocol (URI scheme). If there is no colon it defaults to 'http://', but with an unrecognizable protocol it defaults to the empty string.
Submitted patch: https://gerrit.wikimedia.org/r/84475
Thanks Elliott! (For future reference: Writing "Bug: 33029" instead of "Bug:33029" will create an automatic notification in this bug report.)
Change 84475 had a related patch set uploaded by Ejegg: LinkSearch: use default protocol if unsupported https://gerrit.wikimedia.org/r/84475
Change 84475 merged by jenkins-bot: LinkSearch: use default protocol if unsupported https://gerrit.wikimedia.org/r/84475
Thank you for your patch :)