When a page is moved from the article ns to a non-FlaggedRevs ns and has been sighted before, it is displayed as unsighted in user contribs. (see url)
Probably just one namespace check missing in FlaggedRevs.hooks.php addToContribsLine.
Version: unspecified
Severity: minor
URL: http://de.wikipedia.org/w/index.php?title=Spezial:Beitr%C3%A4ge&dir=prev&offset=20080922231959&limit=3&target=SpBot