- Patch #105937 by Gabor: fixed caching bug with enabling and disabling themes/modules. My last commit of the year ...

modules/system/system.module

@@ -1195,10 +1195,7 @@ function system_themes_submit($form_id, $form_values) {
       foreach ($form_values['status'] as $key => $choice) {
         // Always enable the default theme, despite its status checkbox being checked:
         if ($choice || $form_values['theme_default'] == $key) {
-          // If theme status is being set to 1 from 0, initialize block data for this theme if necessary.
-          if (db_num_rows(db_query("SELECT status FROM {system} WHERE type = 'theme' AND name = '%s' AND status = 0", $key))) {
-            system_initialize_theme_blocks($key);
-          }
+          system_initialize_theme_blocks($key);
           db_query("UPDATE {system} SET status = 1 WHERE type = 'theme' and name = '%s'", $key);
         }
       }
@@ -1474,6 +1471,8 @@ function system_modules_submit($form_id, $form_values) {
     }
   }
 
+  $old_module_list = module_list();
+
   if (!empty($enable_modules)) {
     module_enable($enable_modules);
   }
@@ -1481,8 +1480,6 @@ function system_modules_submit($form_id, $form_values) {
     module_disable($disable_modules);
   }
 
-  $old_module_list = module_list();
-
   // Install new modules.
   foreach ($new_modules as $key => $module) {
     if (!drupal_check_module($module)) {