Last modified: 2008-05-09 16:36:17 UTC
When viewing the unstable version of [[:de:Aldi]], a <b/>-tag is inserted somewhere in the wikitext of the page (after the "[[Wein]]absatz"), so the rest of the page is shown bold, including the portlets. The stable version http://de.wikipedia.org/w/index.php?title=Aldi&stable=1 shows up normally, though the only difference between the revisions is a minor change in a template.
Ok, as it seems the "<b/>" was in the wikitext already and has not been inserted. Strange thing though, that when viewing the stable version, the parser removes the tag and when viewing the unstable version it leaves the tag in.
Only occurs if URL contains stable=0, not if just oldid (permanent link)!
Fixed in r34552