Last modified: 2014-08-20 19:19:52 UTC
As seen at https://www.mediawiki.org/w/index.php?title=Extension%3ALinks&diff=1113386&oldid=1082879, the tool converted a link present inside <nowiki> tags into two-party form (added a pipe). However, text inserted inside <nowiki> tags by the user was intented to be displayed that way and should not be altered. Hence, not only links, but in general, any text present inside <nowiki> tags should not be altered while preparing the page for translation.
This is important and not so trivial: we also have spacepre, pre, code, source, syntaxhighlight.