Thanks for your contribution @Higgs32584! This will need a test that would have failed without the change, but now passes. I think the example from the issue could be adapted into an image comparison test that uses the check_figures_equal decorator.

Edit: actually I think the simpler and more efficient testing approach would be to check the return value from ax.get_legend_handles_labels(). No need for an image comparison.

I apologize for closing this, this was not meant to be closed! I will commit this with a test later, I am still getting used to the development workflow!

@Higgs32584 we have various support for new contributors if it helps:
https://matplotlib.org/devdocs/devel/contributing.html

Ok thank you! I will add a pull request later with tests! Have a nice day!