show-ref not expected to return multiple results

[tucked]

$ git stash push
No local changes to save
$ git log -n1
4fe079f85fb (HEAD, apache/trunk, apache/HEAD) HDFS-16795. Use secure XML parsers (#4979)
$ git -c advice.detachedHead=false checkout apache/trunk
HEAD is now at 4fe079f85fb HDFS-16795. Use secure XML parsers (#4979)
$ git branch --no-contains HEAD '--format=%(refname:short)'
$ git -c advice.detachedHead=false checkout '4fe079f85fb3d288f1b53a9f4668ad0025919e50
907ef6c2858dc42d83cc228d13409830a7d7b163'
error: pathspec '4fe079f85fb3d288f1b53a9f4668ad0025919e50
907ef6c2858dc42d83cc228d13409830a7d7b163' did not match any file(s) known to git
Traceback (most recent call last):
  File "/ifs/home/dtucker/.local/bin/git-rebase-branches", line 8, in <module>
    sys.exit(main())
  File "/ifs/home/dtucker/.local/pipx/venvs/git-rebase-branches/lib/python3.8/site-packages/git_rebase_branches.py", line 170, in main
    run(["git", "-c", "advice.detachedHead=false", "checkout", start], check=True)
  File "/ifs/home/dtucker/.local/pipx/venvs/git-rebase-branches/lib/python3.8/site-packages/git_rebase_branches.py", line 183, in run    return subprocess.run(command, **kwargs)
  File "/usr/lib/python3.8/subprocess.py", line 516, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['git', '-c', 'advice.detachedHead=false', 'checkout', '4fe079f85fb3d288f1b53a9f4668ad0025919e50\n907ef6c2858dc42d83cc228d13409830a7d7b163']' returned non-zero exit status 1.

$ git show-ref --hash HEAD
4fe079f85fb3d288f1b53a9f4668ad0025919e50
907ef6c2858dc42d83cc228d13409830a7d7b163