$ git clone -n https://src.fedoraproject.org/rpms/ghc-digest.git /var/lib/mock/f45-build-10208-414/root/chroot_tmpdir/scmroot/ghc-digest
Cloning into '/var/lib/mock/f45-build-10208-414/root/chroot_tmpdir/scmroot/ghc-digest'...
$ git fetch origin 77fd7ae2b6cd80f2fec663c4bc8c4b885e775e5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-digest
 * [new ref]         77fd7ae2b6cd80f2fec663c4bc8c4b885e775e5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77fd7ae Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild