WorkflowTool.py: allow to add causality state in the convertion of worklist.

product/ERP5/Tool/WorkflowTool.py

@@ -386,6 +386,12 @@ class WorkflowTool(BaseTool, OriginalWorkflowTool):
                 state_id = 'state_'+value
                 state_id_list.append(state_id)
               worklist.setMatchedValidationStateList(state_id_list)
+            elif key == 'causality_state':
+              state_id_list = []
+              for value in values:
+                state_id = 'state_'+value
+                state_id_list.append(state_id)
+              worklist.setMatchedCausalityStateList(state_id_list)
           worklist.setActboxUrl(qdef.actbox_url)
           worklist.setActboxCategory(qdef.actbox_category)
           worklist.setActboxIcon(qdef.actbox_icon)