Options, Meta APIs: Ensure the `$object_id` parameter passed to the `delete_{$meta_type}_meta` and `deleted_{$meta_type}_meta` filters is always an integer.

Props salcode

Fixes #43561

Built from https://develop.svn.wordpress.org/trunk@45064


git-svn-id: http://core.svn.wordpress.org/trunk@44873 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/meta.php

@@ -812,7 +812,7 @@ function delete_metadata_by_mid( $meta_type, $meta_id ) {
 
 	// Fetch the meta and go on if it's found.
 	if ( $meta = get_metadata_by_mid( $meta_type, $meta_id ) ) {
-		$object_id = $meta->{$column};
+		$object_id = (int) $meta->{$column};
 
 		/** This action is documented in wp-includes/meta.php */
 		do_action( "delete_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.2-beta1-45063';
+$wp_version = '5.2-beta1-45064';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.