Merge pull request #1923 from LJ1102/fix-has-many-double-linked-join-table-attribute-updates

Fixes has-many-dobule-linked join table attribute changes on injected setter

lib/associations/has-many-double-linked.js

@@ -128,8 +128,8 @@ module.exports = (function() {
           attributes: Utils._.defaults({}, throughAttributes, defaultAttributes)
           attributes: Utils._.defaults({}, throughAttributes, defaultAttributes)
         }
         }
 
 
-        changedAssociation.where[self.association.identifier] = self.instance[self.association.identifier] || self.instance.id
-        changedAssociation.where[foreignIdentifier] = newObj[foreignIdentifier] || newObj.id
+        changedAssociation.where[self.association.identifier] = self.instance[self.association.identifier] || self.instance[self.association.source.primaryKeyAttributes[0]] || self.instance.id
+        changedAssociation.where[foreignIdentifier] = newObj[foreignIdentifier] || newObj[self.association.target.primaryKeyAttributes[0]] || newObj.id
 
 
         if (Object.keys(changedAssociation.attributes).length) {
         if (Object.keys(changedAssociation.attributes).length) {
           changedAssociations.push(changedAssociation)
           changedAssociations.push(changedAssociation)