Fix scopes to support aliassed models. Closes #3690

lib/model.js

@@ -1805,7 +1805,14 @@ module.exports = (function() {
       // Reverse so we consider the latest include first.
       // This is used if several scopes specify the same include - the last scope should take precendence
       scope.include.reverse().forEach(function (scopeInclude) {
-        if (!_.any(options.include, _.matchesDots('model.name', scopeInclude.model.name))) {
+        if (!_.any(options.include, function matchesModelAndAlias(item) {
+          var sameModel = item.model.name === scopeInclude.model.name;
+
+          if (sameModel && item.as) {
+            return item.as === scopeInclude.as;
+          }
+          return sameModel;
+        })) {
           options.include.push(scopeInclude);
         }
       });
@@ -1948,7 +1955,7 @@ module.exports = (function() {
           model = include.target;
         }
 
-        include = { model: model, association: include };
+        include = { model: model, association: include, as: include.as };
       } else if (include instanceof Model) {
         model = include;
 
@@ -1964,6 +1971,9 @@ module.exports = (function() {
           if (!include.model) {
             include.model = model;
           }
+          if (!include.as) {
+            include.as = include.association.as;
+          }
         } else {
           model = include.model;
         }

test/unit/model/scope.test.js

@@ -196,6 +196,22 @@ describe(Support.getTestDialectTeaser('Model'), function() {
       expect(options.include[0]).to.deep.equal({ model: Project, where: { something: true }});
     });
 
+    it('should be able to merge aliassed includes with the same model', function () {
+      var scope = {
+        include: [{model: User, as: 'someUser'}]
+      };
+
+      var options = {
+        include: [{model: User, as: 'otherUser'}]
+      };
+
+      current.Model.$injectScope(scope, options);
+
+      expect(options.include).to.have.length(2);
+      expect(options.include[0]).to.deep.equal({model: User, as: 'otherUser'});
+      expect(options.include[1]).to.deep.equal({model: User, as: 'someUser'});
+    });
+
     it('should be able to merge scoped include with include in find', function () {
       var scope = {
         include: [