Facebook connect bug

there is a problem with facebook connect for me. when some one signs up my website using facebook connect... who have signed up using there mobile to facebook, signs up okay..but then when some one else signs up using facebook connect. they are loged in the user who previously signed up....now.....even people who signup to facebook using there email..and are signing up using facebook connect are loged in the previous user.....any suggestions how i can fix this. i already deleted the user who signup using facebook connect who signed up to facebook using a phone number...and yet i still get the error with other users.......HELP any one??

Hello try to apply this fix : http://www.boonex.com/trac/dolphin/changeset/15080

described in this ticket :

http://www.boonex.com/trac/dolphin/ticket/2477