$ git clone -n https://src.fedoraproject.org/rpms/gnustep-make.git /var/lib/mock/f42-build-3273618-41312/root/chroot_tmpdir/scmroot/gnustep-make
Cloning into '/var/lib/mock/f42-build-3273618-41312/root/chroot_tmpdir/scmroot/gnustep-make'...
$ git fetch origin f82b64e78bfd3095b9fc205d5ad16a58b5165662:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnustep-make
 * [new ref]         f82b64e78bfd3095b9fc205d5ad16a58b5165662 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f82b64e Require side-tag