[Jaeger Tracing ] In Jaeger Tracing properties shown in span tags Before mediation and after mediation are same

[malakaganga]

Description:

In Jaeger Tracing span tags Before mediation and after mediation are the same.

If we put a payload factory mediator and change the payload, in span tags of PayloadFactoryMediator it shows the same payload as the beforePayload tag and afterPayload tag.

Affected Product Version:
EI-6.6.0

OS, DB, other environment details and versions:

Steps to reproduce:
Set up EI with open tracing
And Add the following api

<?xml version="1.0" encoding="UTF-8"?>
<api xmlns="http://ws.apache.org/ns/synapse"
     name="stock"
     context="/stock" trace="enable">
   <resource methods="POST">
      <inSequence>
         <payloadFactory media-type="xml">
           <format>
             <testClone xmlns="">
               <test>test payload without calling</test>
             </testClone>
           </format>
         </payloadFactory>
         <respond/>
      </inSequence>
   </resource>
</api>

Send a request and monitor Span Tags of PayloadFactoryMediator the beforePayload tag and afterPayload tag will shown as same.