$ git clone -n https://src.fedoraproject.org/rpms/ghc-disk-free-space.git /var/lib/mock/f38-build-side-42-init-devel-908164-28672/root/chroot_tmpdir/scmroot/ghc-disk-free-space
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-908164-28672/root/chroot_tmpdir/scmroot/ghc-disk-free-space'...
$ git fetch origin 9ac8bf6b08be02875a5e76e93e1e719b2061c095:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-disk-free-space
 * [new ref]         9ac8bf6b08be02875a5e76e93e1e719b2061c095 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ac8bf6 Convert to %autorelease and %autochangelog