Widgets: Update default link_type for Gallery widget from none to post for consistency with wp.media.galleryDefaults.

Props bor0.
See #41914.
Fixes #41985.

Built from https://develop.svn.wordpress.org/trunk@41840


git-svn-id: http://core.svn.wordpress.org/trunk@41674 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta1-41839';
+$wp_version = '4.9-beta1-41840';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

wp-includes/widgets/class-wp-widget-media-gallery.php

@@ -75,8 +75,8 @@ class WP_Widget_Media_Gallery extends WP_Widget_Media {
 			),
 			'link_type' => array(
 				'type' => 'string',
-				'enum' => array( 'none', 'file', 'post' ),
-				'default' => 'none',
+				'enum' => array( 'post', 'file', 'none' ),
+				'default' => 'post',
 				'media_prop' => 'link',
 				'should_preview_update' => false,
 			),