Hello,  
to do this in the recommended way will produce a lot of problems :( :(   
The BR "after updating a user" is triggered from "create a user" and from the action "add user to local admin" and  from other different actions.  
That means the BR "after updating a user" is triggered from a handful actions and it's not possible to create conditions for every case.  
My recommendation for the next Adaxes upgrade: add the possiblity to create a condition like "if action = actionname".  
Regards.