feat: return state object trie for no update

core/state/state_object.go

@@ -398,6 +398,11 @@ func (s *stateObject) updateTrie() (Trie, error) {
 		s.db.setError(err)
 		return nil, err
 	}
+
+	if len(s.pendingStorage) == 0 {
+		return s.trie, nil
+	}
+
 	// Insert all the pending storage updates into the trie
 	usedStorage := make([][]byte, 0, len(s.pendingStorage))
 	dirtyStorage := make(map[common.Hash][]byte)