From fcb68d747e6b61e79da6afe573619720ba6baf80 Mon Sep 17 00:00:00 2001
From: Angie Byron <webchick@24967.no-reply.drupal.org>
Date: Sun, 7 Dec 2008 08:23:07 +0000
Subject: #305653 follow-up by sun: Prevent themes from being disabled during
 update.

---
 includes/common.inc | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/includes/common.inc b/includes/common.inc
index df5cb16a9..b8816147f 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -3950,7 +3950,16 @@ function drupal_flush_all_caches() {
   registry_rebuild();
   drupal_clear_css_cache();
   drupal_clear_js_cache();
-  system_theme_data();
+
+  // If invoked from update.php, we must not update the theme information in the
+  // database, or this will result in all themes being disabled.
+  if (defined('MAINTENANCE_MODE') && MAINTENANCE_MODE == 'update') {
+    _system_theme_data();
+  }
+  else {
+    system_theme_data();
+  }
+
   drupal_theme_rebuild();
   menu_rebuild();
   node_types_rebuild();
-- 
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