Board:Collision Modes

Build 4006 on andrew/cub-4156-board-collisionmodeswap-should-place-a-cross-board-arrival
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Baseline History
Build 40065372cbe
Current build. There are unaccepted changes, so build 4005 is still the baseline.
Build 4005bd4db2a current baseline
Accepted by Andrey Yamanov.
Build 3945c46b21c
Accepted by Andrey Yamanov.
Build 38988a74eb6
Accepted by Andrey Yamanov.
Build 38927242165
Auto-accepted
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