Issue with custom outputFormats path for sections

I was able to reproduce a minimal Hugo project that surfaces an issue with the path not being respected for sections.

Here’s a repository that reproduces the issue:

I’ve committed the public output to make it easy to see what’s happening. Am I making some kind of mistake here? Is this an issue that I should file? Is there some way to force the section pages to save a custom outputFormat to where I expect it to be based on the configured path?