cannot check condition [beforeDrop]Error: Syntax error, unrecognized expression: #function(t){return this.filter((function(e){return t.indexOf(e)<0}))}

[weiyuanyong]

this is js error log:cannot check condition [beforeDrop]Error: Syntax error, unrecognized expression: #function(t){return this.filter((function(e){return t.indexOf(e)<0}))}.

dolphinscheduler version:1.3.1-release

操作流程：进入工作流编辑页面（即http://ip:8888/#/projects/definition/list/127），当给两个节点建立连接时，鼠标放开，则报上述js错误。
经自己排查，定位到代码处：dag.js中JSP.handleEvent()处 -》 jsPlumbHandle.js中this.JspInstance.bind('beforeDrop', function (info) 处 -》 jsplumb.js中this.checkCondition函数处 抛出异常。

此错误导致的后果是，工作流节点前后关系(preTask)无法保存。请问如何修复此问题，感谢！
附上图片：

[yangyichao-mango]

Hi,

I do not reproduce this bug in 1.3.1-release branch, please describe more detail about how to reproduce this bug.
If you have any question or suggestion, welcome to put forward.

[chengshiwen]

Close this issue since it can't be reproduced