fix countAncestors and fix fork warning.

lib/bcoin/chain.js

@@ -92,10 +92,10 @@ Chain.prototype._init = function _init() {
       + ' tip-chainwork=%s competitor-chainwork=%s'
       + ' chainwork-diff=%s (%s)',
       entry.height,
-      utils.revHex(self.tip.hash),
-      utils.revHex(entry.hash),
       self.tip.height,
       entry.height,
+      utils.revHex(self.tip.hash),
+      utils.revHex(entry.hash),
       self.tip.chainwork.toString(),
       entry.chainwork.toString(),
       self.tip.chainwork.sub(entry.chainwork).toString(),

lib/bcoin/fullnode.js

@@ -331,10 +331,15 @@ Fullnode.prototype.getTX = function getTX(hash, callback) {
 
 Fullnode.prototype.hasTX = function hasTX(hash, callback) {
   var self = this;
-  return this.getTX(hash, function(err, tx) {
+
+  this.mempool.hasTX(hash, function(err, result) {
     if (err)
       return callback(err);
-    return callback(null, !!tx);
+
+    if (result)
+      return callback(null, true);
+
+    self.chain.db.hasTX(hash, callback);
   });
 };
 

lib/bcoin/mempool.js

@@ -849,22 +849,25 @@ Mempool.prototype.verify = function verify(tx, callback) {
 
 Mempool.prototype.countAncestorsSync = function countAncestorsSync(tx) {
   var self = this;
-  var inputs = new Array(tx.inputs.length);
-  var i, input, prev;
+  var max = 0
+  var i, input, prev, count;
 
   for (i = 0; i < tx.inputs.length; i++) {
     input = tx.inputs[i];
     prev = this.getTXSync(input.prevout.hash);
-    inputs[i] = 0;
+    count = 0;
 
     if (!prev)
       continue;
 
-    inputs[i] += 1;
-    inputs[i] += this.countAncestorsSync(prev);
+    count += 1;
+    count += this.countAncestorsSync(prev);
+
+    if (count > max)
+      max = count;
   }
 
-  return inputs.sort().pop();
+  return max;
 };
 
 Mempool.prototype.hasOrphanSync = function hasOrphanSync(hash) {