increment total block count on alternate chains.

lib/bcoin/chain.js

@@ -1540,6 +1540,10 @@ Chain.prototype.add = function add(block, callback, force) {
             if (err)
               return callback(err);
 
+            // Keep track of the number of blocks we
+            // added and the number of orphans resolved.
+            total++;
+
             // Emit our block (and potentially resolved
             // orphan) only if it is on the main chain.
             self.emit('competitor', block, entry);