Ticket #40966: 40966.2.diff

src/wp-admin/js/updates.js

@@ -2053 +2053 @@
                         wp.updates.maybeRequestFilesystemCredentials( event );
 
                         event.preventDefault();
+                        
+                        // Disable the Apply button while working
+                        $(this).prop( 'disabled', true );
 
                         // Un-check the bulk checkboxes.
                         $bulkActionForm.find( '.manage-column [type="checkbox"]' ).prop( 'checked', false );
@@ -2121 +2124 @@
                                 if ( error > 0 && ! wp.updates.queue.length ) {
                                         $( 'html, body' ).animate( { scrollTop: 0 } );
                                 }
+                                
+                                // Re-enable the Apply button after displaying update notifications
+                                $bulkActionForm.find( 'input[type="submit"]' ).prop( 'disabled', false );
                         } );
 
                         // Reset admin notice template after #bulk-action-notice was added.