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lib/dao.js

@@ -544,9 +544,13 @@ DataAccessObject.find = function find(params, cb) {
 
         if (params && params.include) {
           if (params.collect) {
-            // Return the collected item for through models
+            // The collect property indicates that the query is to return the
+            // standlone items for a related model, not as child of the parent object
+            // For example, article.tags
             obj = obj.__cachedRelations[params.collect];
           } else {
+            // This handles the case to return parent items including the related
+            // models. For example, Article.find({include: 'tags'}, ...);
             // Try to normalize the include
             var includes = params.include || [];
             if (typeof includes === 'string') {