Dirk Daems created NIFI-7383:
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             Summary: Attribute value duplicated when using more than one 
escaped variable
                 Key: NIFI-7383
                 URL: https://issues.apache.org/jira/browse/NIFI-7383
             Project: Apache NiFi
          Issue Type: Bug
    Affects Versions: 1.11.3
            Reporter: Dirk Daems


After upgrading to version 1.11.3, it looks like attribute values are 
duplicated when using more than one escaped variable. E.g. in the 
GenerateFlowFile processor, we have a property with value 
/path/to/$${var1}$${var2}/$${var3}. When the flowfile is generated, the actual 
value of the attribute is:

/path/to/${var1}/path/to/${var1}${var2}/path/to/${var1}$${var2}/${var3}

while we would expect:

/path/to/${var1}${var2}/${var3}, like in the version we had installed before 
(1.9.2)



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