Ticket #15648: switch_theme.15648.patch

wp-includes/theme.php

@@ -1246 +1246 @@
 function switch_theme($template, $stylesheet) {
         global $wp_theme_directories;
 
+        $old_template = get_option('template');
+        $old_stylesheet = get_option('stylesheet');
         update_option('template', $template);
         update_option('stylesheet', $stylesheet);
         if ( count($wp_theme_directories) > 1 ) {
@@ -1258 +1260 @@
                 $default_theme_mods = (array) get_option( "mods_$theme" );
                 add_option( "theme_mods_$stylesheet", $default_theme_mods );
         }
-        do_action('switch_theme', $theme);
+        do_action('switch_theme', $template, $stylesheet, $old_template, $old_stylesheet);
 }
 
 /**