Last modified: 2013-07-11 16:43:43 UTC
If you explicitly declare positional parameters in a template, and then edit it with the Visual Editor, the Template Inspector converts it to implicitly declared positional parameters - i.e. {{some template|1= foo |2= bar }} becomes {{some template|foo|bar}}. Now, if an explicit positional parameter contains an equals sign, then the Template Inspector puts nowiki tags around it. So {{some template|1= foo=bar |2= baz }} becomes {{some template|<nowiki>foo=bar</nowiki>|baz}}. However, "foo=bar" and "<nowiki>foo=bar</nowiki>" are not equivalent wikitext. For example, nowiki tags will break wikilinks. There's an example of the difference in this diff: https://www.mediawiki.org/w/index.php?title=VisualEditor:Template_test&diff=712906&oldid=712905 See the effects for the revisions before and after (look at the "Inline template" section). Before: https://www.mediawiki.org/w/index.php?title=VisualEditor:Template_test&oldid=712905 After: https://www.mediawiki.org/w/index.php?title=VisualEditor:Template_test&oldid=712906
See also bug 49743.
This feels like a Parsoid bug, but I'm not sure? The user creating the equivalent of {{foo|1=foo|2=bar=foo}} should serialise to {{foo|foo|2=bar=foo}} instead of {{foo|foo|bar<nowiki>=</nowiki>foo}}.
Change 72876 had a related patch set uploaded by GWicke: Bug 49739: Use named parameter if value contains '=' https://gerrit.wikimedia.org/r/72876
Change 72876 merged by jenkins-bot: Bug 49739: Use named parameter if value contains '=' https://gerrit.wikimedia.org/r/72876
