Bug report

Code snippet that reproduces the problem

Hi @ondrejmirtes, I have a weird issue
https://phpstan.org/r/128696e5-bdcf-437b-8a8a-370bda86edaf

As soon as I remove uuid: string|null from the return type it works.

Expected output

no errors

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Sure