I saw a message in the message bar after creating a group, something like: "you created group <a href="#Group/10000">My Group</a>" Looks like we are dumping the HTML directly, not rendering it. We should take out the links or render the HTML properly. Need to go through all our code to see where we log HTML messages to see if this happens elsewhere (it probably does).
This is "fallout" from the sanitizing of Messages ( BZ 742614 ), where the html gets escaped in order to prevent attacks that way. And yes I agree, this needs to be fixed - especially as the table below immediately shows the new group.
*** This bug has been marked as a duplicate of bug 744770 ***