consensus/ethash: ensure uncle accounts are included in block witness (#40)

consensus/ethash/consensus.go

@@ -662,6 +662,8 @@ func accumulateRewards(config *params.ChainConfig, state *state.StateDB, header
 		r.Sub(r, header.Number)
 		r.Mul(r, blockReward)
 		r.Div(r, big8)
+		uncleCoinbase := utils.GetTreeKeyBalance(uncle.Coinbase.Bytes())
+		state.Witness().TouchAddress(uncleCoinbase, state.GetBalance(uncle.Coinbase).Bytes())
 		state.AddBalance(uncle.Coinbase, r)
 
 		r.Div(blockReward, big32)