Non-registered component used in elements.json and permittedDescendents/exclude doesn't trigger error

Provide a broad description of the bug.

If componentC is not valid as a permittedDescendents within componentA (i.e used with exclude) and componentC is not registered in elements.json, then html-validate will not fail when encountering componentC as descendent of componentA.

Reduced test-case

Show the smallest possible markup that fails.

Configuration

Use html-validate --print-config FILENAME or show the content of all relevant .htmlvalidate.json files.

"componentA": { "permittedDescendants": [{ "exclude": "componentC" }] }

Expected result

Given the provided example, what did you expect would happen?

The expected result would be for html-validate to fail and to report the line in which componentC was found.

Actual result

What happened instead?

html-validate executes and finished with a success code (i.e echo $? results in 0)

Version

• html-validate: 2.23.0
• html-validate-angular: N/A
• html-validate-vue: 3.1.0
• html-validate-protractor: N/A . any other relevant plugin: