$ git clone -n https://src.fedoraproject.org/rpms/ghc-refact.git /var/lib/mock/f45-build-10658-419/root/chroot_tmpdir/scmroot/ghc-refact
Cloning into '/var/lib/mock/f45-build-10658-419/root/chroot_tmpdir/scmroot/ghc-refact'...
$ git fetch origin d6ed71aad30bc1a652bdf5dac5829be6cd85f1fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-refact
 * [new ref]         d6ed71aad30bc1a652bdf5dac5829be6cd85f1fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6ed71a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild