Example (the issue amplified by the block editor):

// Ask WordPress for its tags, using the taxonomy slug.
wp.data.select( 'core' ).getEntityRecords( 'taxonomy', 'post_tag' );

// And WordPress asks itself for its tags using the taxonomy rest_base
// https://plugins.test/wp-json/wp/v2/tags?context=edit

// Ask WordPress for posts with an associated term using the taxonomy rest base.
wp.data.select( 'core' ).getEntityRecords( 'postType', 'my_cpt', { tags: [ 123 ] } );

// And WordPress passes the parameters as provided
// https://plugins.test/wp-json/wp/v2/my_cpt?context=edit&tags%5B0%5D=123

I’m mostly publishing this because I’ll forget one day. 🙂

Published Thursday, Jun 1 at 20:57