$ git clone -n https://src.fedoraproject.org/rpms/composefs.git /var/lib/mock/f41-build-856825-167776/root/chroot_tmpdir/scmroot/composefs
Cloning into '/var/lib/mock/f41-build-856825-167776/root/chroot_tmpdir/scmroot/composefs'...
$ git fetch origin 43a1b481c32a6959eb0a08d416cc09597c280af7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/composefs
 * [new ref]         43a1b481c32a6959eb0a08d416cc09597c280af7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43a1b48 https://github.com/containers/composefs/releases/tag/v1.0.6