Prevent appending configuration if configuration flag is set

[oceanapplications]

In reference to this bug

laravel/framework#51207

[oceanapplications]

Can we get this merged soon? The bug causes CI/CD failures which is super annoying.

[piurafunk]

This is also now impacting my team, as we upgrade to Laravel 11.x. Our CI pipeline has its own phpunit.xml.ci configuration. Previous versions of PHPUnit allowed multiple declarations and it worked, but it felt more like it happened to work rather than it was designed to work that way. PHPUnit now specifically disallows setting it multiple times.

[oceanapplications]

This is also now impacting my team, as we upgrade to Laravel 11.x. Our CI pipeline has it sown phpunit.xml.ci configuration. Previous versions of PHPUnit allowed multiple declarations and it worked, but it felt more like it happened to work rather than it was designed to work that way. PHPUnit now specifically disallows setting it multiple times.

I had to switch to my fixed branch to continue CI without this error. Been months without being merged.

[xam-ps]

@nunomaduro any plan to merge this anytime soon? My pipeline tests are "broken" for about 5 months now even though they are all green.