$ git clone -n https://src.fedoraproject.org/rpms/ghc-data-reify.git /var/lib/mock/f45-build-10181-414/root/chroot_tmpdir/scmroot/ghc-data-reify
Cloning into '/var/lib/mock/f45-build-10181-414/root/chroot_tmpdir/scmroot/ghc-data-reify'...
$ git fetch origin 1a995a60bacc8e3fd8d4a12ecb336e95ffcb0f09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-data-reify
 * [new ref]         1a995a60bacc8e3fd8d4a12ecb336e95ffcb0f09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a995a6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild