Macros related to lists appear to have no effect

[groenroos]

Description of the bug

When trying to apply a macro to the list elements in my HTML, they seem to have no effect in the final HTML:

Block_Converter::macro( 'ol', function ( \DOMNode $node ) {
	/* Convert to paragraph just to see if it works */
	return new Block( 'core/paragraph', [], $node->textContent );
} );

<!-- wp:heading {"level":2} --><h2>Test content</h2><!-- /wp:heading -->

<!-- wp:list {"ordered":true} --><ol>
<li>
<p>Foo</p>
</li>
<li>
<p>Bar</p>
</li>
</ol><!-- /wp:list -->

The same happens regardless of whether the macro is targeting "ol", "li", or "ul".

However, the exact same macro targeting "h2" does work:

Block_Converter::macro( 'h2', function ( \DOMNode $node ) {
	/* Convert to paragraph just to see if it works */
	return new Block( 'core/paragraph', [], $node->textContent );
} );

<!-- wp:paragraph -->Test content<!-- /wp:paragraph -->

<!-- wp:list {"ordered":true} --><ol>
<li>
<p>Foo</p>
</li>
<li>
<p>Bar</p>
</li>
</ol><!-- /wp:list -->

Steps To Reproduce

1. Use the test HTML below
2. Write a macro attempting to affect the conversion of <ol> and/or <li> tags
3. $converter = new Block_Converter( $html ); return $converter->convert();
4. The resulting HTML will look identical to when no macro is present - i.e. the macro wasn't applied

Additional Information

Test HTML:

$html = "<h2>Test content</h2>\n<ol>\n<li>\n<p>Foo</p>\n</li>\n<li>\n<p>Bar</p>\n</li>\n</ol>\n";