in merge_pr.py [0:0]
def fix_version_from_branch(branch, versions):
# Note: Assumes this is a sorted (newest->oldest) list of un-released versions
if branch == "master":
return versions[0]
else:
branch_ver = branch.replace("branch-", "")
return list(filter(lambda x: x.name.startswith(branch_ver), versions))[-1]