message: Fix prop_hash rename.
diff: @@ -36,7 +36,7 @@ pub(crate) fn compute_rewards<C: Context>(state: &State<C>, bhash: &C::Hash) ->
  }
  }
  }
  - prev_block = state.block(prop_hash);
  + prev_block = state.block(proposal_hash);
  }
  rewards
  }
  