Last modified: 2014-07-11 18:08:12 UTC
Example: {{#switch:a|b=c|#default|e=f|g=h}} This currently expands to h. It would make sense for it to either ignore the #default key without a value (i.e. treat the value as empty) or to treat it like any other key without a value, i.e. fall through and return f. But I don't see any rationale for returning the last value.
A further detail: Usually, if more than one #default is provided, the last one is used (in contrast to other keys, where the first instance is used): {{#switch:a|b=c|#default=x|#default=y|e=f|g=h}} yields y. However, a #default without a value causes the last value to be used (see above) even if it is followed by a proper #default with value: {{#switch:a|b=c|#default|#default=y|e=f|g=h}} yields h, not y.
Change 87643 had a related patch set uploaded by Nemo bis: Fix #switch #default to match next (not last) named parameter. https://gerrit.wikimedia.org/r/87643
Change 87643 merged by jenkins-bot: Fix #switch #default to match next (not last) named parameter. https://gerrit.wikimedia.org/r/87643
This should be deployed to WMF wikis with 1.24wmf14, see https://www.mediawiki.org/wiki/MediaWiki_1.24/Roadmap for the schedule.
