slapos_jio: Fix 'Go Back' link on login_form

  Like in WebSite_login, came_from is an URI Template so we must expand the URI to handle the {&n.me}
  that can be present on the URL.
1 job for fix-go-back-on-login in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Rafael

01:25:18