Nav numbers start appearing when using pheasant

[epicfaace]

I'm using mkdocs 1.1. My nav initially looks like this:

However, when I enable pheasant, it looks like this:

Here's my mkdocs.yml: https://github.com/rjsf-team/react-jsonschema-form/blob/bdf81a70fc90f0f32b8a4e3ee5d8a4b0328d817d/mkdocs.yml#L15

[daizutabi]

I changed the default behavior of nav numbering (False by default). Please update pheasant to version 2.5.2 or later.

[epicfaace]

Thanks!