VS 2017 Update 15.8.* breaks integrationtests using TuesPechkin

[ChrisCphDk]

Supporter from MSFT suggest raising an issue with you guys, after creating a ticket at:
https://developercommunity.visualstudio.com/content/problem/316985/test-with-tuespechkin-started-failing-after-instal.html

After updating Visual Studio 2017 from 15.7 to 15.8, tests starts failing, if two tests in two different test-dlls make use of Tuespechkin.
The above ticket/URL includes a simple project with two test-projects, recreating the issue.

Is this an issue, which Tuespechkin should handle, or Visual Studio?