$ git clone -n https://src.fedoraproject.org/rpms/python-google-cloud-bigquery.git /var/lib/mock/f40-build-2338384-59595/root/chroot_tmpdir/scmroot/python-google-cloud-bigquery
Cloning into '/var/lib/mock/f40-build-2338384-59595/root/chroot_tmpdir/scmroot/python-google-cloud-bigquery'...
$ git fetch origin cc77f2ef8dfda0e13aff0171aee340dc53d8c7e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-google-cloud-bigquery
 * [new ref]         cc77f2ef8dfda0e13aff0171aee340dc53d8c7e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc77f2e Orphaned for 6+ weeks