Ticket #38221: 38221.1.diff

src/js/_enqueues/admin/media.js

@@ -157 +157 @@
                         $mediaGridWrap.trigger( 'wp-media-grid-ready', frame );
                 }
 
-                // Prevents form submission if no post has been selected.
+                // Prevents form submission if posts exists to be selected and no post has been selected.
                 $( '#find-posts-submit' ).click( function( event ) {
-                        if ( ! $( '#find-posts-response input[type="radio"]:checked' ).length )
+                        if ( $( '#find-posts-response input[type="radio"]' ).length && ! $( '#find-posts-response input[type="radio"]:checked' ).length ) {
                                 event.preventDefault();
+                        }
                 });
 
                 // Submits the search query when hitting the enter key in the search input.