Just had one of our users come up with a weird issue. We were not able to reproduce it though. Here it goes.
He had an empty profile (vcard). He was checking out another person’‘s profile, that person then IM’‘d him, and he then he double clicked the person’‘s name in the conversation box. When he did that (with the person’'s profile still open), spark copied that other person profile and inserted it as his own. Was able to verify this from looking at the backend vcard data on the wildfire server. Not too much of an issue, except for to him it looked like he took over the other persons account.