Dashboard: Don't trigger an Events search when the search field is empty.

Fixes #40816.

Built from https://develop.svn.wordpress.org/trunk@40799


git-svn-id: http://core.svn.wordpress.org/trunk@40657 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/js/dashboard.js

@@ -234,10 +234,20 @@ jQuery( function( $ ) {
 			$container.on( 'click', '.community-events-toggle-location, .community-events-cancel', app.toggleLocationForm );
 
 			$container.on( 'submit', '.community-events-form', function( event ) {
+				var location = $.trim( $( '#community-events-location' ).val() );
+
 				event.preventDefault();
 
+				/*
+				 * Don't trigger a search if the search field is empty or the
+				 * search term was made of only spaces before being trimmed.
+				 */
+				if ( ! location ) {
+					return;
+				}
+
 				app.getEvents({
-					location: $( '#community-events-location' ).val()
+					location: location
 				});
 			});
 

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-beta1-40798';
+$wp_version = '4.8-beta1-40799';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.