diff --git a/wp-content/themes/twentyfifteen/functions.php b/wp-content/themes/twentyfifteen/functions.php
index d96c0270b3..1a8e8a3a38 100644
--- a/wp-content/themes/twentyfifteen/functions.php
+++ b/wp-content/themes/twentyfifteen/functions.php
@@ -250,7 +250,7 @@ function twentyfifteen_scripts() {
 		wp_enqueue_script( 'twentyfifteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20141010' );
 	}
 
-	wp_enqueue_script( 'twentyfifteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20141212', true );
+	wp_enqueue_script( 'twentyfifteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20150330', true );
 	wp_localize_script( 'twentyfifteen-script', 'screenReaderText', array(
 		'expand'   => '<span class="screen-reader-text">' . __( 'expand child menu', 'twentyfifteen' ) . '</span>',
 		'collapse' => '<span class="screen-reader-text">' . __( 'collapse child menu', 'twentyfifteen' ) . '</span>',
diff --git a/wp-content/themes/twentyfifteen/js/functions.js b/wp-content/themes/twentyfifteen/js/functions.js
index 558869ac61..eeeecd2246 100644
--- a/wp-content/themes/twentyfifteen/js/functions.js
+++ b/wp-content/themes/twentyfifteen/js/functions.js
@@ -80,10 +80,7 @@
 
 	// Sidebar scrolling.
 	function resize() {
-		windowWidth   = $window.width();
-		windowHeight  = $window.height();
-		bodyHeight    = $body.height();
-		sidebarHeight = $sidebar.height();
+		windowWidth = $window.width();
 
 		if ( 955 > windowWidth ) {
 			top = bottom = false;
@@ -98,6 +95,10 @@
 			return;
 		}
 
+		sidebarHeight = $sidebar.height();
+		windowHeight  = $window.height();
+		bodyHeight    = $body.height();
+
 		if ( sidebarHeight + adminbarOffset > windowHeight ) {
 			if ( windowPos > lastWindowPos ) {
 				if ( top ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 3ddcf70855..5536581dfb 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-beta3-31933';
+$wp_version = '4.2-beta3-31934';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.