[jira] [Created] (SLING-6032) Not sling pipe

[Nicolas Peltier (JIRA)]

Nicolas Peltier created SLING-6032:
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             Summary: Not sling pipe
                 Key: SLING-6032
                 URL: https://issues.apache.org/jira/browse/SLING-6032
             Project: Sling
          Issue Type: Improvement
          Components: Extensions
            Reporter: Nicolas Peltier


a not sling pipe, working as a reference sling pipe would be useful:
- output nothing if referred pipe has any output,
- output input if referred pipe has no output



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