1 When using the [[plugins/htmltidy]] plugin (and possibly in other circumstances), ikiwiki sometimes creates more `</p>` tags than `<p>` tags, causing unbalanced markup. I've previously noticed unbalanced tags when a `\[[!map]]` matches no pages. This is part of the reason I developed [[plugins/htmlbalance]].
3 This is particularly noticeable if htmltidy is enabled when building the docwiki: on the 'contrib' plugin pages, the title becomes `foo </p> (third-party plugin)` (with the angle-brackets escaped - it seems the text gets sanitized but is then escaped anyway).
5 I believe that this snippet in `IkiWiki.pm` might be the reason for the imbalance:
8 # hack to get rid of enclosing junk added by markdown
11 $content=~s/<\/p>$//i;
15 The fact that HTML in a `\[[!meta title]]` is added but then escaped might indicate that some other bug is involved.