$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-archive.git /var/lib/mock/f41-build-733360-13201/root/chroot_tmpdir/scmroot/rust-gix-archive
Cloning into '/var/lib/mock/f41-build-733360-13201/root/chroot_tmpdir/scmroot/rust-gix-archive'...
$ git fetch origin 4e964cf9ac7bcc3bdf0a165557ce99fed258e320:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-archive
 * [new ref]         4e964cf9ac7bcc3bdf0a165557ce99fed258e320 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e964cf Update to version 0.11.0 (rhbz#2253264)