Merge changes from topic "presubmit-am-368b5e63ab404c84b18fb4dfba552be2"
* changes:
[automerge] Use the reason code from standby bucketing in bg restriction if needed 2p: 32bef9c5 2p: 7e13fc66
[automerge] Use the reason code from standby bucketing in bg restriction if needed 2p: 32bef9c5
Use the reason code from standby bucketing in bg restriction if needed