[2.3] Only clear in delete_version_transients when version is set

2015-05-27 15:56:42 +01:00 · 2015-05-27 15:56:42 +01:00 · 915342f38b
parent 267c481d86
commit 915342f38b
1 changed files with 1 additions and 1 deletions
--- a/includes/class-wc-cache-helper.php
+++ b/includes/class-wc-cache-helper.php
@ -62,7 +62,7 @@ class WC_Cache_Helper {
 	 * @since  2.3.10
 	 */
 	private static function delete_version_transients( $version ) {
-		if ( ! wp_using_ext_object_cache() ) {
+		if ( ! wp_using_ext_object_cache() && ! empty( $version ) ) {
 			global $wpdb;
 			$wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s;", "\_transient\_%" . $version ) );
 		}