$ git clone -n https://src.fedoraproject.org/rpms/ghc-parallel.git /var/lib/mock/f45-build-10581-419/root/chroot_tmpdir/scmroot/ghc-parallel
Cloning into '/var/lib/mock/f45-build-10581-419/root/chroot_tmpdir/scmroot/ghc-parallel'...
$ git fetch origin a8adbb0d7504193a218be6f29e31b53640459d7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-parallel
 * [new ref]         a8adbb0d7504193a218be6f29e31b53640459d7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8adbb0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild