github-actions[bot] removed a comment on issue #5657:
URL: 
https://github.com/apache/dolphinscheduler/issues/5657#issuecomment-863271873


   Operation steps
   1、when i has created  condition's node and linked the other nodes, i modify 
the link nodes name and save the process_definition. 
   
   2、excute the process_definition
   
   3、 There is an error message in the log :
         
org.apache.dolphinscheduler.server.master.runner.MasterExecThread:[189] - 
master exec thread exception
   java.lang.NullPointerException: null
        at 
org.apache.dolphinscheduler.dao.utils.DagHelper.isTaskNodeNeedSkip(DagHelper.java:317)
   
   
![9999](https://user-images.githubusercontent.com/26142295/122412902-8d827000-cfb8-11eb-8d08-8ba8da490844.png)


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