Composed Task Graph is not rendered properly when using $END

[cppwfs]

The following statement timestamp '*'->t1: timestamp 'FOO'->$END the graph is rendered as

It should look something like:

also notice that timestamp is also flagged invalid. But the syntax is parseable by CTR

[cppwfs]

Refer to issue for additional detail: spring-cloud/spring-cloud-dataflow#4373

[BoykoAlex]

The problem is on the server side
POST to /tools/parseTaskTextToGraph with body:

{
  dsl: "timestamp '*'->t1: timestamp 'FOO'->$END"
  name: "unknown"
}

The response is:

{
   "graph":{
      "nodes":[
         {
            "id":"0",
            "name":"START"
         },
         {
            "id":"1",
            "name":"timestamp"
         },
         {
            "id":"2",
            "name":"timestamp",
            "metadata":{
               "label":"t1"
            }
         },
         {
            "id":"3",
            "name":"$END"
         },
         {
            "id":"4",
            "name":"END"
         }
      ],
      "links":[
         {
            "from":"0",
            "to":"1"
         },
         {
            "from":"1",
            "to":"2",
            "properties":{
               "transitionName":"*"
            }
         },
         {
            "from":"1",
            "to":"3",
            "properties":{
               "transitionName":"FOO"
            }
         },
         {
            "from":"1",
            "to":"4"
         },
         {
            "from":"2",
            "to":"4"
         }
      ]
   },
   "dsl":null,
   "errors":[
      
   ]
}

[cppwfs]

This is a fairly old issue. Tracked it back to 2.0. Opened parser issue here: spring-cloud/spring-cloud-dataflow#4399