Last modified: 2009-11-19 19:00:32 UTC
Eg.: Page: title=Special:Recentchanges Feed link: title=Special:Rencentchanges&feed=atom Page: title=Special:Recentchanges&namespace=0 Feed link: title=Special:Rencentchanges&feed=atom (&namespace=0 is missing) etc... Applies to all special pages which have feeds and can have additional parameters in URL set via the form.
Fixed in r59262.