ensure genesis validator set in DB

2017-04-19 15:35:12 +02:00
parent a278dd5a0a
commit af868a7439
3 changed files with 65 additions and 51 deletions
--- a/ethcore/src/blockchain/blockchain.rs
+++ b/ethcore/src/blockchain/blockchain.rs
@@ -810,9 +810,11 @@ impl BlockChain {
 			}
 		};

-		transitions.candidates.push(transition);
-
-		batch.write(db::COL_EXTRA, &epoch_num, &transitions);
+		// ensure we don't write any duplicates.
+		if transitions.candidates.iter().find(|c| c.block_hash == transition.block_hash).is_none() {
+			transitions.candidates.push(transition);
+			batch.write(db::COL_EXTRA, &epoch_num, &transitions);
+		}
 	}

 	/// Add a child to a given block. Assumes that the block hash is in