$ git clone -n https://src.fedoraproject.org/rpms/ghc-wl-pprint.git /var/lib/mock/f41-build-838124-159541/root/chroot_tmpdir/scmroot/ghc-wl-pprint
Cloning into '/var/lib/mock/f41-build-838124-159541/root/chroot_tmpdir/scmroot/ghc-wl-pprint'...
$ git fetch origin 65554dfae71b7dd2a5abb6d7b4a6d51c5f8e241c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-wl-pprint
 * [new ref]         65554dfae71b7dd2a5abb6d7b4a6d51c5f8e241c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65554df bump release