Ensure the bug was not already reported by searching on GitHub under Issues.
If you're unable to find an open issue addressing the problem, open a new one. Be sure to include a title and clear description, as much relevant information as possible, and a code sample or an executable test case demonstrating the expected behavior that is not occurring.
Did you write a patch that fixes a bug?
Open a new GitHub Pull Request with the patch.
Ensure the PR description clearly describes the problem and solution. Include the relevant issue number if applicable.