$ git clone -n https://src.fedoraproject.org/rpms/python-coveralls.git /var/lib/mock/f45-build-30136-643/root/chroot_tmpdir/scmroot/python-coveralls
Cloning into '/var/lib/mock/f45-build-30136-643/root/chroot_tmpdir/scmroot/python-coveralls'...
$ git fetch origin b16d3b6ba393a9ed9fd2205558c014bdd641a6d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-coveralls
 * [new ref]         b16d3b6ba393a9ed9fd2205558c014bdd641a6d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b16d3b6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild