Hygiene: Prevent random campaign interfering with A/B test

When you click random in left menu and then click login you do
not enter the A/B test. This rectifies that problem.

Change-Id: I0929e84bc119051c854608466671d99d1c2a2ba3
(cherry picked from commit c0068f876dcbdd09d45b9d95d91e0d1e67ebc9d5)