Test Cache should be updated properly in load-balanced environment.

Description

Steps to reproduce
1) Create two alloy sites with a shared sql database.
2) Configure event forwarding (this enables object cache sharing for load balanced environments)
Documented
https://support.episerver.com/hc/en-us/articles/115004100443-Episerver-load-balancing-example-Configuring-events-over-WCF-with-TCP-IP
3) On the content authoring machine, create a test, visit the page, and verify that the test works properly.
4) On the load balanced machine, visit the page (in a separate or incognito browser) and verify that test is working properly (view, conversion, and cookie existence).

Expected:
Tests stop and start on load balanced machines.

Actual:
Tests do not stop and start on load balanced machines.

Related to MAR-1180