fix(hasMany): make sure the getter called by the setters use the transaction

lib/associations/has-many.js

@@ -309,7 +309,9 @@ module.exports = (function() {
 
       // define the returned customEventEmitter, which will emit the success event once everything is done
       return new Utils.CustomEventEmitter(function(emitter) {
-        instance[self.accessors.get]()
+        instance[self.accessors.get]({
+          transaction: (defaultAttributes || {}).transaction
+        })
           .success(function(oldAssociatedObjects) {
             var Class = Object(self.through) === self.through ? HasManyDoubleLinked : HasManySingleLinked
             new Class(self, instance).injectSetter(emitter, oldAssociatedObjects, newAssociatedObjects, defaultAttributes)
@@ -324,7 +326,10 @@ module.exports = (function() {
         , where = new Utils.where(self.target.rawAttributes[primaryKey], newInstance[primaryKey])
 
       return new Utils.CustomEventEmitter(function(emitter) {
-        instance[self.accessors.get]({ where: where })
+        instance[self.accessors.get]({
+          where: where,
+          transaction: (additionalAttributes || {}).transaction
+        })
           .proxy(emitter, {events: ['error', 'sql']})
           .success(function(currentAssociatedObjects) {
             if (currentAssociatedObjects.length === 0 || Object(self.through) === self.through) {
@@ -337,10 +342,12 @@ module.exports = (function() {
       }).run()
     }
 
-    obj[this.accessors.remove] = function(oldAssociatedObject) {
+    obj[this.accessors.remove] = function(oldAssociatedObject, options) {
       var instance = this
       return new Utils.CustomEventEmitter(function(emitter) {
-        instance[self.accessors.get]().success(function(currentAssociatedObjects) {
+        instance[self.accessors.get]({
+          transaction: (options || {}).transaction
+        }).success(function(currentAssociatedObjects) {
           var newAssociations = []
             , oldAssociations = []