The issue is that a particular private team has permissions on that repository, but only a subset of the repository owners can see that private team. We'll need to adjust the constraint on `GitGranteeField` somehow so that any current grantee is accepted even if it wouldn't normally be available for selection due to the constraints imposed by the `ValidPersonOrTeam` vocabulary.
The issue is that a particular private team has permissions on that repository, but only a subset of the repository owners can see that private team. We'll need to adjust the constraint on `GitGranteeField` somehow so that any current grantee is accepted even if it wouldn't normally be available for selection due to the constraints imposed by the `ValidPersonOrTeam` vocabulary.