'Basics' tab in blip can trigger a logout

[creswick]

Navigating back to the 'Basics' tab in the blip web interface can cause the site to log you out, putting you back at a login screen.

Reproduction:

1. Populate an account with cgm data (no pump data or finger sticks)
2. Log in, navigate to the Weekly or Trends tabs. (I have not checked 'remember me', I could see that causing some confusion here or making the bug irreproducible.)
3. Click on 'Basics'.

After clicking on 'Basics' you are immediately returned to the login screen.

Step (1) may be a red herring; I still need to upload some data from my pump -- I should be able to do that later today and report back. Edit for clarity: Step (1) is necessary to reproduce the problem.

[creswick]

This problem did go away after uploading PDM data (OmniPod UST-400), so maybe there's something strange about the way page transitions are happening to/from pages that have no data?