Blocks not allowed for a post type are shown in the Pattern directory

[chvillanuevap]

Describe the bug
Blocks types that are not allowed using the allowed_block_types filters are still shown in the Pattern directory.
To reproduce
Steps to reproduce the behavior:

1. Select which blocks are allowed using the allowed_block_types filter.

add_filter( 'allowed_block_types', array( 'my_allowed_block_types' ), PHP_INT_MAX, 2 );
function my_allowed_block_types( $allowed_blocks, $post ) {
    if ( in_array( $post->post_type, [ 'mycpt' ], true ) ) {
        return [
            ... // my allowed block types
        ];
    }

    return $allowed_blocks;
}

2. Click on the appender "+" button in your post type.
3. Select the Patterns tab.
4. See error.

Expected behavior
Since I'm only allowing custom blocks that I built myself in my post type, the pattern directory should be empty because I haven't added any patterns that use my block.

Editor version (please complete the following information):

• WordPress version: 5.5
• Does the website has Gutenberg plugin installed, or is it using the block editor that comes by default? Default.

[jeremyfelt]

Related: #23275

[jeremyfelt]

This was partially addressed in #30300. I think this ticket (#24505) can be closed as a duplicate of #23275.

[Mamaduka]

I think this should be fixed after #30366.

[youknowriad]

Closing as the linked PR is merged.