diff --git a/wp-admin/includes/class-wp-ms-themes-list-table.php b/wp-admin/includes/class-wp-ms-themes-list-table.php
index b3df81c008..a22fcb80bb 100644
--- a/wp-admin/includes/class-wp-ms-themes-list-table.php
+++ b/wp-admin/includes/class-wp-ms-themes-list-table.php
@@ -179,7 +179,7 @@ class WP_MS_Themes_List_Table extends WP_List_Table {
 				'requires_php' => '',
 			);
 
-			$filter_payload = array_merge( $filter_payload, array_intersect_key( $theme_data, $filter_payload ) );
+			$filter_payload = (object) array_merge( $filter_payload, array_intersect_key( $theme_data, $filter_payload ) );
 
 			$auto_update_forced = wp_is_auto_update_forced_for_item( 'theme', null, $filter_payload );
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ff8beb95c0..f19fcdff19 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6-alpha-49242';
+$wp_version = '5.6-alpha-49243';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.