Just consider the below PRs.
I get commit info by command below. Just focus on the commits in these PRs
The branch value in commit c81951296d3585542d770708e678d1e00df51d32 is master
The branch value in commit b66c80ce96a67ba56e284651a01e52d32a1635f8 is test-1
The branch value in commit c51bb96dff40898de21179e06d8f2dbe3e84ecc2 is test-2