$ git clone -n https://src.fedoraproject.org/rpms/ghc-mtlparse.git /var/lib/mock/f45-build-10554-418/root/chroot_tmpdir/scmroot/ghc-mtlparse
Cloning into '/var/lib/mock/f45-build-10554-418/root/chroot_tmpdir/scmroot/ghc-mtlparse'...
$ git fetch origin fec6a870175ca78a01c8e9751c417323a8e5f6fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mtlparse
 * [new ref]         fec6a870175ca78a01c8e9751c417323a8e5f6fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fec6a87 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild