We had issue with an account that TFS reported to there are multiple users with the same display name. I searched the database and found two entries with the same 'displayname'.
First weird thing is that the account names are only different in some letters with or without capital (exactly "SIvakhno" and "sivakhno"), I thought TFS (and Microsoft) is not capital sensitive, right? Why does it consider the two accounts are different?
My next question is, if I want to remove one to solve the 'multiple user' issue, which entry should I remove from the database? They have different 'Sid', 'Id', 'AccountName' (as above), 'UniqueUserId' (1 and 0, respectively), 'LastSync', 'SequenceId', all the other fileds are the same in the table.
Thanks