[TYPO3-english] formhandler additionalParams - clean url

[7seas]

 hi everyone,

 To pass Get/Post data from one Formhandler-form into another, I use a 
 redirectPage finisher in the first form:

 1.class = Tx_Formhandler_Finisher_Redirect
 1.config {
     redirectPage = 259
     additionalParams {
       senddata = TEXT
       senddata.dataWrap = 
 &formhandler[uid]={GPvar:formhandler|uid}&formhandler[randomID]={GPvar:formhandler|randomID}
     }
     correctRedirectUrl = 1
 }

 The GPvar data are required in second form for updating fields in 2 
 different tables, using Finisher_DB, updateInsteadOfInsert = 1
 ("senddata" is only used to pass the string into additionalParams, 
 could be any string)
 The GPvars for the first form: uid=112 
 randomID=5842e7288817084cf81165ffb9f030ea

 Unfortunately the url contains (html) chars like %26 and 
 correctRedirectUrl does not remove them.
   
 ..index.php?id=259&no_cache=1&uid=%26formhandler[uid]%3D112%26formhandler[randomID]%3D5842e7288817084cf81165ffb9f030ea

 Is there some typoscript to render a clean url?


 thanks,
 Caspar