Overlapping same-team Hidden Zones incorrectly prevent anything from being seen#629

Before the last major update to TTS, I had a mod that made use of teams and hidden zones.
There were spaces on the table that have two overlapping hidden zones owned by two players on the same team.
I can fix the mod so that it works around this bug, but basically what happens is noone can see anything in their hidden zones because there is another players hidden zone in the same space EVEN THOUGH that player is on the same team.

Repro Steps:
1) play as player 1, have someone else be player 2 or use a hotseat game with a 2nd player
2) set player 1 and player 2 to be the same team (e.g. hearts)
3) create a hidden zone on the left of the table for player one
4) create a hidden zone on the right of the table for player two
5) spawn some objects in the player 1 hidden zone
6) use the gizmo tool and slide the player 2 zone over the player 1 zone
7) objects that are in both zones will disappear
8) use the gizmo tool and slide the player 1 zone away from the objects
9) objects will reappear beacuse they are now only in one zone

Result:
objects are invisible when they are within the intersection of 2 team-mates hidden zones