Now that one is fixed but with that fix there came symfony/symfony#39521 which breaks our tests in a different way :see_no_evil: .
The fix of https://github.com/symfony/symfony/issues/34805 and also break symfony/symfony#39521 came in 4.4.17, 5.1.9, 5.2.0.
There was https://github.com/symfony/symfony/issues/34805, which is finally fixed now. :partying_face: That was failing the tests on Symfony YAML >=4.4 including all 5.x versions.
Now that one is fixed but with that fix there came symfony/symfony#39521 which breaks our tests in a different way :see_no_evil: . The fix of https://github.com/symfony/symfony/issues/34805 and also break symfony/symfony#39521 came in 4.4.17, 5.1.9, 5.2.0.