Can you add a test for this? (such that the test fails before the change, of course)

@user202729 so basically you want me to add the test cases and before and after input and output, am I right buddy?

@user202729 so basically you want me to add the test cases and before and after input and output, am I right buddy?

@user202729 is referring to this from the developer guide:

Bugfixes: If the PR contains a bugfix, does it add a doctest illustrating that the bug has been fixed? This new doctest should contain the issue or PR number, for example See :issue:12345.

* [x]  I have created tests covering the changes.

* [x]  I have updated the documentation and checked the documentation preview.

You didn't add any tests or change the documentation yet. Please do not mark these tasks as being done until you've completed them. And for future contributions, not all of these are relevant for every PR. You only need to check off the items relevant to the PR, and you should not check them off until you've completed them.