fix: pass along transaction when propagating association deletes with hooks, closes #3422

lib/query-interface.js

@@ -631,11 +631,15 @@ module.exports = (function() {
     }
 
     return Promise.reduce(cascades, function (memo, cascade) {
-      return dao[cascade]().then(function (instances) {
+      return dao[cascade]({
+        transaction: options.transaction
+      }).then(function (instances) {
         if (!Array.isArray(instances)) instances = [instances];
 
         return Promise.reduce(instances, function (memo, instance) {
-          return instance.destroy();
+          return instance.destroy({
+            transaction: options.transaction
+          });
         }, []);
       });
     }, []).then(function () {