Be decent. Assume the other person is trying to help.
Concretely, in issues, discussions and pull requests:
- criticise the code, not the person;
- when you disagree, say what you would do instead;
- if something broke following our documentation, that is a documentation bug: treat it as one, not as user error;
- no harassment, no personal attacks, no dragging in unrelated fights.
Maintainers may edit, lock or delete contributions that ignore this, and may block accounts that keep doing it.
Report a problem privately through GitHub's abuse reporting, or by opening a private security advisory if it involves a specific person.