$ git clone -n https://src.fedoraproject.org/rpms/golang-github-bep-godartsass.git /var/lib/mock/f38-build-side-42-init-devel-931072-28746/root/chroot_tmpdir/scmroot/golang-github-bep-godartsass
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-931072-28746/root/chroot_tmpdir/scmroot/golang-github-bep-godartsass'...
$ git fetch origin e89738d78e8f930e0e659134713c6875a1fbb959:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-bep-godartsass
 * [new ref]         e89738d78e8f930e0e659134713c6875a1fbb959 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e89738d Update to 0.16.0 (rhbz#2065673)