Huh, if you switch before the trooper page is fully loaded then switch back to the trooper tab, it ends up getting stuck on the tree you switched to instead. (ie: /chromium )

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/infra.git/+/11fded3c9b6dae90ff5860a28907da6ea866af4e

commit 11fded3c9b6dae90ff5860a28907da6ea866af4e
Author: Tiffany Zhang <zhangtiff@google.com>
Date: Thu Dec 15 00:43:30 2016

SoM: Fix trooper navigation bug.

BUG= 673969 

Change-Id: I572793d8025d2a02c24a96bc7bcd504494520f81
Reviewed-on: https://chromium-review.googlesource.com/419707
Reviewed-by: Sean McCullough <seanmccullough@chromium.org>
Commit-Queue: Tiffany Zhang <zhangtiff@chromium.org>

[modify] https://crrev.com/11fded3c9b6dae90ff5860a28907da6ea866af4e/go/src/infra/appengine/sheriff-o-matic/elements/som-bug-queue.html
[modify] https://crrev.com/11fded3c9b6dae90ff5860a28907da6ea866af4e/go/src/infra/appengine/sheriff-o-matic/test/som-annotations-test.html

 Issue 673978  has been merged into this issue.

This should be part of the next release. (Or it was for a while with the test release haha.)