add chain.hasOrphan method.

lib/bcoin/chain.js

@@ -381,13 +381,26 @@ Chain.prototype.has = function has(hash, noProbe, cb) {
   return cb(!!this.orphan.map[hash]);
 };
 
-Chain.prototype.hasBlock = function hasBlock(hash, noProbe, strict) {
+Chain.prototype.hasBlock = function hasBlock(hash) {
   if (this.loading)
     return false;
 
+  if (Array.isArray(hash))
+    hash = utils.toHex(hash);
+
   return this.index.bloom.test(hash, 'hex');
 };
 
+Chain.prototype.hasOrphan = function hasOrphan(hash) {
+  if (this.loading)
+    return false;
+
+  if (Array.isArray(hash))
+    hash = utils.toHex(hash);
+
+  return !!this.orphan.bmap[hash];
+};
+
 Chain.prototype.get = function get(hash, force, cb) {
   if (typeof force === 'function') {
     cb = force;

lib/bcoin/peer.js

@@ -460,12 +460,11 @@ Peer.prototype._handleInv = function handleInv(items) {
     for (var i = 0; i < blocks.length; i++) {
       var block = blocks[i];
       var hash = utils.toHex(block);
-      if (this.chain.orphan.bmap[hash]) {
+      if (this.chain.hasOrphan(hash)) {
         this.loadBlocks(this.chain.locatorHashes(), this.chain.getOrphanRoot(hash));
         continue;
       }
       if (!this.chain.hasBlock(hash)) {
-        // this.getData({ type: 'block', hash: hash });
         req.push({ type: 'block', hash: block });
         continue;
       }