🐛 Fix inflight/pending callbacks execute in wrong order

lib/client/doc.js

@@ -295,7 +295,7 @@ Doc.prototype._handleFetch = function(error, snapshot) {
   var callbacks = this.pendingFetch;
   this.pendingFetch = [];
   var callback = this.inflightFetch.shift();
-  if (callback) callbacks.push(callback);
+  if (callback) callbacks.unshift(callback);
   if (callbacks.length) {
     callback = function(error) {
       util.callEach(callbacks, error);

test/client/doc.js

@@ -101,6 +101,21 @@ describe('Doc', function() {
       doc.fetch(finish);
       doc.fetch(finish);
     });
+    it('callbacks called in correct order when fetching and applying ops in quick succession', function(done) {
+      var connection = this.connection;
+      var doc = connection.get('dogs', 'fido');
+      doc.create({name: 'fido'});
+      var order = ""
+      doc.fetch(function() { order += "A" });
+      doc.submitOp([{p: ['snacks'], oi: true}]);
+      doc.fetch(function() { order += "B" });
+      doc.submitOp([{p: ['color'], oi: 'gray'}]);
+      doc.fetch(function() { order += "C" });
+      doc.whenNothingPending(function() {
+        expect(order).to.eql("ABC");        
+        done();
+      });
+    });
   });
 
   describe('when connection closed', function() {