fix start problem of +1

Signed-off-by: [email protected] <[email protected]>

Author: pinges

ethereum/eth/src/main/java/org/hyperledger/besu/ethereum/eth/sync/possync/PosSyncDownloadPipelineFactory.java

@@ -158,7 +158,7 @@ public Pipeline<SyncTargetNumberRange> createDownloadPipelineForSyncTarget(
     final int downloaderBodyParallelism = syncConfig.getDownloaderBodyParallelism();
     final int downloaderReceiptParallelism = syncConfig.getDownloaderReceiptsParallelism();
 
-    final long startingBlock = getCommonAncestor(target) + 1;
+    final long startingBlock = getCommonAncestor(target);
     final PosSyncSource syncSource =
         new PosSyncSource(
             startingBlock, // TODO remove the +1 when check in DefaultBlockChain is fixed