Schema warning in VSCode when assigning null to schema's "tag" key of a nestable theme block

[eballeste]

Short description of issue

Theme check complains that “tag” expects a string value when assigning it a value of null.
null is a valid value which prevents wrapping the nested theme block with a dom element.

Reproduction steps

Create a nestable theme block and assign a value of null to the block’s schema “tag” value:

<h2 class="heading" {{ block.shopify_attributes }}>
  {{ 'Heading text' }}
</h2>

{% schema %}
{
  "name": "Heading",
  "tag": null,
  "settings": []
}
{% endschema %}

Additional info

“tag”: null in block schema is allowed per docs and works at runtime

What type of topic is this

Bug report

Upload screenshot(s) of issue

[Charles-Philippe_Cle]

Seems to be working fine in blocks? Note that tag: null is not allowed for sections, we can’t see from the screenshot if this was from a section file or not but here’s one that shows that tag: null is reporting an error on a section file but not from a block file: