Transition.py: fix transition guard generation and update function.

product/ERP5Workflow/Document/Transition.py

@@ -99,7 +99,6 @@ class Transition(IdAsReferenceMixin("transition_", "prefix"), XMLObject):
                       roles=self.getRoleList(),
                       groups=self.getGroupList(),
                       expr=self.getExpression())
-      else:
       if self.guard.roles != self.getRoleList():
         self.guard.roles = self.getRoleList()
       if self.guard.permissions != self.getPermissionList():