Ticket #46974: 46974.diff

src/wp-admin/edit-form-blocks.php

@@ -49 +49 @@
         sprintf( '/wp/v2/users/me?post_type=%s&context=edit', $post_type ),
         array( '/wp/v2/media', 'OPTIONS' ),
         array( '/wp/v2/blocks', 'OPTIONS' ),
+        sprintf( '/wp/v2/%s/%d/autosaves?context=edit', $rest_base, $post->ID ),
 );
 
 /**