$ git clone -n https://src.fedoraproject.org/rpms/rust-gix-object.git /var/lib/mock/f41-build-side-1-2849447-33912/root/chroot_tmpdir/scmroot/rust-gix-object
Cloning into '/var/lib/mock/f41-build-side-1-2849447-33912/root/chroot_tmpdir/scmroot/rust-gix-object'...
$ git fetch origin a9fcd5ef13484753103b1a2ed12ed56250b4f82a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gix-object
 * [new ref]         a9fcd5ef13484753103b1a2ed12ed56250b4f82a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9fcd5e Update to version 0.44.0 (rhbz#2307389)