do not call getRelativeUrl() if movement is already a str.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33956 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/SolverTypeInformation.py

@@ -114,7 +114,10 @@ class SolverTypeInformation(ERP5TypeInformation):
     if self.isLineGroupable():
       return ()
 
-    return movement.getRelativeUrl()
+    if isinstance(movement, str):
+      return movement
+    else:
+      return movement.getRelativeUrl()
 
   def getDefaultConfigurationPropertyDict(self, configurable):
     """