[I] Bug [camel-karavan]

[via GitHub]

vijayrhythm opened a new issue, #1437:
URL: https://github.com/apache/camel-karavan/issues/1437

   ### Describe the bug
   
   When we add On Exception Definition with **OnWhen** statement with YAML DSL, 
it adds additional **when** statement unexpectedly when we switch between 
'Routes' tab and 'YAML' tab. This cause failure. It appears to require a fix 
similar to issue [1420 
](https://github.com/apache/camel-karavan/commit/f8b5bd84624057f6fcf77424a5c0c1b46e6ec570#diff-7f543f0c99fab7d0f20b48c7f45a2e160f19c244067464cf7704d060ac11addd)
 where it resolved the same for CatchDefinition. Please could someone help to 
resolve it. Thanks.
   
   - route:
       id: route-d663
       nodePrefixId: route-52e
       from:
         id: from-d6c1
         uri: amqp
         steps:
           - choice:
               id: choice-d1e9
               when:
                 - id: when-19d8
                   expression:
                     groovy:
                       id: groovy-1c57
                       expression: 1=1
               otherwise:
                 id: otherwise-c779
   - routeConfiguration:
       onException:
         - onException:
             id: onException-04a7
             onWhen:
               **when**:
                 id: when-61ee
                 expression:
                   simple:
                     id: simple-c2b6
                     expression: ${exception.statusCode} == 500
   
   ### Steps to reproduce the behavior
   
   1. Create a flow adding On Exception with OnWhen step in a Route 
Configuration (below is an example)
   "- route:
       id: route-d663
       nodePrefixId: route-52e
       from:
         id: from-d6c1
         uri: amqp
         steps:
           - choice:
               id: choice-d1e9
               when:
                 - id: when-19d8
                   expression:
                     groovy:
                       id: groovy-1c57
                       expression: 1=1
               otherwise:
                 id: otherwise-c779
   "- routeConfiguration:
       onException:
         "- onException:
             id: onException-04a7
             **onWhen:**
                 id: when-61ee
                 expression:
                   simple:
                     id: simple-c2b6
                     expression: ${exception.statusCode} == 500
   2. Switch between Routes (route view) and coming back to YAML editor
   3. We see an additional 'when' statement below On When
   " - routeConfiguration:
       onException:
         - onException:
             id: onException-04a7
             **onWhen:
               when:**
                 id: when-e875
                 when:
                   id: when-61ee
                   expression:
                     simple:
                       id: simple-c2b6
                       expression: ${exception.statusCode} == 500
   
   ### Variant
   
   Web Application
   
   ### Container Management (if applicable)
   
   None
   
   ### Operating System (if applicable)
   
   None
   
   ### Version
   
   4.8.0
   
   ### Relevant log output
   
   _No response_


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