merge from 1.3.3-release

dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js

@@ -53,7 +53,9 @@ Dag.prototype.setConfig = function (o) {
  */
 Dag.prototype.create = function () {
   const self = this
-  jsPlumb.ready(() => {
+  let plumbIns = jsPlumb.getInstance()
+  plumbIns.reset()
+  plumbIns.ready(() => {
     JSP.init({
       dag: this.dag,
       instance: this.instance,
@@ -164,7 +166,10 @@ Dag.prototype.backfill = function (arg) {
       })
     })
   } else {
-    jsPlumb.ready(() => {
+    const self = this
+    let plumbIns = jsPlumb.getInstance()
+    plumbIns.reset()
+    plumbIns.ready(() => {
       JSP.init({
         dag: this.dag,
         instance: this.instance,