Twenty Eleven: Correct the fallback to the default header if the featured image width is narrower than the `twentyeleven_header_image_width` setting.

Follow-up to [45581].

Props sabernhardt, macmanx, audrasjb.
See #52516.
Built from https://develop.svn.wordpress.org/trunk@50360


git-svn-id: http://core.svn.wordpress.org/trunk@49971 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-content/themes/twentyeleven/header.php

@@ -103,12 +103,13 @@ if ( is_singular() && get_option( 'thread_comments' ) ) {
 				 * The header image.
 				 * Check if this is a post or page, if it has a thumbnail, and if it's a big one
 				 */
+				$image = false;
 				if ( is_singular() && has_post_thumbnail( $post->ID ) ) {
 					$image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( $header_image_width, $header_image_width ) );
+				}
 				if ( $image && $image[1] >= $header_image_width ) {
 					// Houston, we have a new header image!
 					echo get_the_post_thumbnail( $post->ID, 'post-thumbnail' );
-					}
 				} else {
 					// Compatibility with versions of WordPress prior to 3.4.
 					if ( function_exists( 'get_custom_header' ) ) {

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-beta2-50359';
+$wp_version = '5.7-beta2-50360';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.