$ git clone -n https://src.fedoraproject.org/rpms/ghc-clock.git /var/lib/mock/f45-build-10082-413/root/chroot_tmpdir/scmroot/ghc-clock
Cloning into '/var/lib/mock/f45-build-10082-413/root/chroot_tmpdir/scmroot/ghc-clock'...
$ git fetch origin 8cc5289017a8a4fa96b5650bf24bdd443e5709a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-clock
 * [new ref]         8cc5289017a8a4fa96b5650bf24bdd443e5709a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cc5289 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild