Prout ascribes Testing-in-Production results to a PR before the PR is even seen in Prod

[rtyley]

In membership frontend, 2 PRs were merged within a few minutes of each other:

1. PR 1436
2. PR 1441

Although PR 1436 went out first, all the Testing-In-Production results were posted by Prout onto PR 1441. Though it can be hard to accurately ascribe a test to PR, what went particularity wrong here was that the TiP results were ascribed to PR 1441 before it was even seen in Production: