fix(include): values from includes loaded with separate now set with raw: true, closes #4740

changelog.md

 # NEXT
 # NEXT
+- [FIXED] timestamp columns are no longer undefined for associations loaded with `separate`. [#4740](https://github.com/sequelize/sequelize/issues/4740)
 - [FIXED] Mark unscoped model as `.scoped`, to prevent injection of default scope on includes [#4663](https://github.com/sequelize/sequelize/issues/4663)
 - [FIXED] Mark unscoped model as `.scoped`, to prevent injection of default scope on includes [#4663](https://github.com/sequelize/sequelize/issues/4663)
 - [ADDED] `.previous` now returns and object of previous values when called without `key`. This brings the API in line with `.changed`
 - [ADDED] `.previous` now returns and object of previous values when called without `key`. This brings the API in line with `.changed`
 
 

lib/model.js

@@ -1431,7 +1431,10 @@ Model.$findSeparate = function(results, options) {
       results.forEach(function (result) {
       results.forEach(function (result) {
         result.set(
         result.set(
           include.association.as,
           include.association.as,
-          map[result.get(include.association.source.primaryKeyAttribute)]
+          map[result.get(include.association.source.primaryKeyAttribute)],
+          {
+            raw: true
+          }
         );
         );
       });
       });
     });
     });

test/integration/include/seperate.test.js

@@ -56,6 +56,10 @@ if (current.dialect.supports.groupedLimit) {
             expect(users[0].get('tasks').length).to.equal(3);
             expect(users[0].get('tasks').length).to.equal(3);
             expect(users[1].get('tasks')).to.be.ok;
             expect(users[1].get('tasks')).to.be.ok;
             expect(users[1].get('tasks').length).to.equal(1);
             expect(users[1].get('tasks').length).to.equal(1);
+
+            expect(users[0].get('tasks')[0].createdAt).to.be.ok;
+            expect(users[0].get('tasks')[0].updatedAt).to.be.ok;
+
             expect(sqlSpy).to.have.been.calledTwice;
             expect(sqlSpy).to.have.been.calledTwice;
           });
           });
         });
         });