[[!comment format=mdwn
 username="joey"
 subject="""Re: get file by branch and path in bare repository"""
 date="2023-09-12T16:46:55Z"
 content="""
--branch is limited to a treeish, so not a single file.

You can use `git-annex lookupkey --ref` to look up the key used by a ref to
a file, and then pass that to `git-annex get --key`

(That's a new feature I added due to you asking this question.)
"""]]