$ git clone -n https://src.fedoraproject.org/rpms/ghc-bitwise.git /var/lib/mock/f41-build-838889-159867/root/chroot_tmpdir/scmroot/ghc-bitwise
Cloning into '/var/lib/mock/f41-build-838889-159867/root/chroot_tmpdir/scmroot/ghc-bitwise'...
$ git fetch origin ae70550e8d03f50fe50d0c9689f1e73125a702b1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-bitwise
 * [new ref]         ae70550e8d03f50fe50d0c9689f1e73125a702b1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae70550 bump release