$ git clone -n https://src.fedoraproject.org/rpms/golang-github-cosmos72-gomacro.git /var/lib/mock/f38-build-side-42-init-devel-1018238-29604/root/chroot_tmpdir/scmroot/golang-github-cosmos72-gomacro
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1018238-29604/root/chroot_tmpdir/scmroot/golang-github-cosmos72-gomacro'...
$ git fetch origin 33ea315516e5de123e580cb655d73ec069d1065b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-cosmos72-gomacro
 * [new ref]         33ea315516e5de123e580cb655d73ec069d1065b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33ea315 Retired: Long term failure to build