May be oot. As a maintainer I always try to accept help what people suggest, and make it even better. Without asking people to write tests or format code to match my preferences or make it cleaner…
I often fix some code in my fork, open a pr, but author asking for tests or change something but I simply have no time for it, and for author it will be much easier because he/she is familiar with code style, testing framework, etc. And problem remain unfixed in main repo