Pseudo pattern hidden frontmatter value not overridable

[JosefBredereck]

I use Pattern Lab Node v5.14.0 on Windows, with Node v14.8.0, using a Vanilla Edition.

We got a message on Gitter about the frontmatter pattern hidden.
When pseudo patterns inherit the hidden value, you cannot override this behavior for the pseudo pattern.

Expected Behavior

A pseudo pattern with frontmatter hidden: false should be visible even if its ancestor pattern is hidden.

Actual Behavior

The pseudo pattern will not get visible.

Steps to Reproduce

create the following data structure

patternA.hbs
patternA.md
>  ---
>  hidden: true
>  ---

patternA~variant.json
patternA~variant.md
>  ---
>  hidden: false
>  ---