we got null on serialization

[nohwnd]

https://nohwnd.visualstudio.com/Pester/_build/results?buildId=3665&view=ms.vss-test-web.build-test-results-tab&runId=1026880&resultId=100074&paneView=debug

[fflaten]

Unclear issue. Does look like the linked run ever started. The newer run for same PR is normal: https://nohwnd.visualstudio.com/Pester/_build/results?buildId=3668&view=ms.vss-test-web.build-test-results-tab