Add logs to make it more apparent that No Common Ancestors isn't necessarily bad (#3354)

* Add logs to make it more apparent that No Common Ancestors isn't necessarily a bad thing

* Switch No common ancestor log message to DEBUG

chain/src/main/scala/org/bitcoins/chain/blockchain/BaseBlockChain.scala

@@ -111,8 +111,8 @@ private[blockchain] trait BaseBlockChainCompObject
     val tipResult: ConnectTipResult = {
       findPrevBlockHeaderIdx(header, blockchain) match {
         case None =>
-          logger.warn(
-            s"No common ancestor found in the chain with tip=${blockchain.tip.hashBE.hex} to connect to hash=${header.hashBE} prevHash=${header.previousBlockHashBE}")
+          logger.debug(
+            s"No common ancestor found in the chain with tip=${blockchain.tip.hashBE.hex} to connect to hash=${header.hashBE.hex} prevHash=${header.previousBlockHashBE.hex}. This may be because we have a competing reorg!")
           val err = TipUpdateResult.BadPreviousBlockHash(header)
           val failed = ConnectTipResult.BadTip(err)
           failed

node/src/main/scala/org/bitcoins/node/NeutrinoNode.scala

@@ -65,22 +65,20 @@ case class NeutrinoNode(
     * @return
     */
   override def sync(): Future[Unit] = {
+    val blockchainsF =
+      BlockHeaderDAO()(executionContext, chainConfig).getBlockchains()
     for {
       chainApi <- chainApiFromDb()
       header <- chainApi.getBestBlockHeader()
       bestFilterHeaderOpt <- chainApi.getBestFilterHeader()
       bestFilterOpt <- chainApi.getBestFilter()
-      blockchains <-
-        BlockHeaderDAO()(executionContext, chainConfig).getBlockchains()
+      blockchains <- blockchainsF
       // Get all of our cached headers in case of a reorg
       cachedHeaders = blockchains.flatMap(_.headers).map(_.hashBE.flip)
       _ <- peerMsgSender.sendGetHeadersMessage(cachedHeaders)
-      tip = blockchains
-        .map(_.tip)
-        .head //should be safe since we have genesis header inserted in db
       _ <- syncFilters(bestFilterHeaderOpt = bestFilterHeaderOpt,
                        bestFilterOpt = bestFilterOpt,
-                       bestBlockHeader = tip,
+                       bestBlockHeader = header,
                        chainApi = chainApi)
     } yield {
       logger.info(