@dyc3 @ematipico thinking about it, I'd say the current fix is wrong...

:slotted is always a level one pseudo element, not level two.
In that regard, it is rather like :highlight which also requires parenthesis.

So, wouldn't it make more sense to place it under OTHER_PSEUDO_ELEMENTS ?

Also some pointer to help me where to look to fix the tests would be highly appreciated 😉

CodSpeed Performance Report

Merging #5118 will not alter performance

_{Comparing Th3S4mur41:fix/issue-5116 (d8f0cad) with main (d739883)}

Summary

✅ 94 untouched benchmarks

@Th3S4mur41

You can suggest a different fix, like creating a new list, however I still don't understand why that's needed. Or, more like, I don't understand why the fix is wrong.

As for fixing the test, you need to update the snapshot tests. The contributing document explains that