vmchecker-submit: Fix bug in checking if a user belongs to a team and submitting on that team's behalf.
vmchecker-submit: Fix bug in checking if a user belongs to a team and submitting on that team's behalf.

calin-iorgulescu/vmchecker,calin-iorgulescu/vmchecker,calin-iorgulescu/vmchecker,calin-iorgulescu/vmchecker,calin-iorgulescu/vmchecker,calin-iorgulescu/vmchecker