$ git clone -n https://src.fedoraproject.org/rpms/python-google-cloud-core.git /var/lib/mock/f38-build-side-42-init-devel-828799-28366/root/chroot_tmpdir/scmroot/python-google-cloud-core
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-828799-28366/root/chroot_tmpdir/scmroot/python-google-cloud-core'...
$ git fetch origin d4f4ad8a27beb2f41de8ef5baec634bc370624ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-google-cloud-core
 * [new ref]         d4f4ad8a27beb2f41de8ef5baec634bc370624ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4f4ad8 Update tests