REST API: Only include the controller's own taxonomy in it's schema.

Previously, all taxonomies were incorrectly exposed as possible values.

This commit brings the changes from [49922] to the 5.6 branch.

Props johnbillion, TimothyBlynJacobs.

Fixes #51940.

Built from https://develop.svn.wordpress.org/branches/5.6@50047


git-svn-id: http://core.svn.wordpress.org/branches/5.6@49748 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php

@@ -965,7 +965,7 @@ class WP_REST_Terms_Controller extends WP_REST_Controller {
 				'taxonomy'    => array(
 					'description' => __( 'Type attribution for the term.' ),
 					'type'        => 'string',
-					'enum'        => array_keys( get_taxonomies() ),
+					'enum'        => array( $this->taxonomy ),
 					'context'     => array( 'view', 'embed', 'edit' ),
 					'readonly'    => true,
 				),

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.6.1-alpha-50046';
+$wp_version = '5.6.1-alpha-50047';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.