Removed cstr in return for get_server_fields()

production/doctype/bill_of_materials/bill_of_materials.py

@@ -106,7 +106,7 @@ class DocType:
             'standard_rate'      : 0
             }
           ret_item.update(ret_bom_rates)
-    return cstr(ret_item)
+    return ret_item
 
   def set_as_default_bom(self):
     # set Is Default as 1

production/doctype/production_order/production_order.py

@@ -34,7 +34,7 @@ class DocType:
             'stock_uom'   : item and item[0]['stock_uom'] or '',
             'default_bom' : item and item[0]['default_bom'] or ''
     }
-    return cstr(ret)
+    return ret
     
   def validate(self):
     if not self.doc.production_item :