Hello
This is not a real answer but a workaround I found:
Instead of using the native Joomla menu links (user profile and edit user profile) make a Seblod list on the user type you created.
In the search tab of the list put the user ID field with a user LIVE value (button 2) set to the 'id' parameter. This way the list will only bring the current user.
in the list/element tabs put anything you want, it doesn't really matter because you have to activate the AUTO REDIRECTION to 'content' or 'form' depending you want to watch or edit the user profile.
Make a 'seblod list' menu item on this list and... voila !! this menu link makes the same job as the native joomla menu links but is correctly rewritten.
cyril