$ git clone -n https://src.fedoraproject.org/rpms/hylafax+.git /var/lib/mock/f38-build-side-42-init-devel-1364766-30702/root/chroot_tmpdir/scmroot/hylafax+
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1364766-30702/root/chroot_tmpdir/scmroot/hylafax+'...
$ git fetch origin c711f85ef94c658906d932872637f7fd504de28e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hylafax+
 * [new ref]         c711f85ef94c658906d932872637f7fd504de28e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c711f85 Update to v7.0.7