Line chart series don't render correctly (not filled) with `fill` and `smooth` config

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2. 
   
   
   

   
   

   
   

   Line chart series don't render correctly (not filled) with `fill` and `smooth` config

   
   

   
   

   Line chart series don't render correctly (not filled) with `fill` and `smooth` config

   
   
   
   

   
   

   Line chart series don't render correctly (not filled) with `fill` and `smooth` configs together.
   

   Check the fiddle : http://ift.tt/1uhsjMV

   
   

   Ext JS version 5.1.0.107

   
   

   Thank you in advance.

   
   

   
   

   
   

   
   

   
   

   
   
   
   

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Line chart series don't render correctly (not filled) with `fill` and `smooth` config