$ git clone -n https://src.fedoraproject.org/rpms/ghc-smallcheck.git /var/lib/mock/f45-build-10772-424/root/chroot_tmpdir/scmroot/ghc-smallcheck
Cloning into '/var/lib/mock/f45-build-10772-424/root/chroot_tmpdir/scmroot/ghc-smallcheck'...
$ git fetch origin 4d76d2310244c22e7703c2ee9bc1883ed363c222:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-smallcheck
 * [new ref]         4d76d2310244c22e7703c2ee9bc1883ed363c222 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d76d23 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild