Last modified: 2009-06-25 13:27:50 UTC
History feed item is built using the “colon-separator” interface message which separates the author of the revision from the comment. However, since the colon-separator contains “: ” currently, and the feed is XML-escaped afterwards, the resulting feed items display “ ” (see the URL for an example). See includes/PageHistory.php, line 539. A quick fix might consist of changing FeedItem::stripComment to replace HTML entities with the respective characters. (OBTW, it seems we are a bit inconsistent with formatting/escaping comments, anyway, even on wiki…)
Fixed in r51453