Discrepancy between docs and actual result of `Interval.simplify`

[francishamel]

Hi! I noticed a discrepancy in the docs.

In the docs, we see that calling ["8P", "9M", "10M", "11P", "12P", "13M", "14M", "15P"].map(Interval.simplify) should return [ "8P", "2M", "3M", "4P", "5P", "6M", "7M", "8P" ], but what is actually returned is "8P", "2M", "3M", "4P", "5P", "6M", "7M", "1P" ]. Are the docs wrong or is there a bug?

I'm currently using tonal 6.4.2.