Spring Webflow: Transition not triggered part 2

1 lagi kes transition not triggered. After a series of try & error, didapati puncanya kerana ada 2 evaluate dalam transition itu.

Kod di bawah merupakan kod yang working selepas diubah.

...

 <transition on="removerd">  
      <!-- <evaluate expression="requestParameters.rdhidid" result="flowScope.selectedRatingDetailId"></evaluate> -->  
      <evaluate expression="ratingFrmService.removeRatingDetailRow( ratingForm, requestParameters.rdhidid )" result="ratingForm"></evaluate>  
 </transition>  

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