diff -u b/core/modules/comment/comment.module b/core/modules/comment/comment.module
--- b/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -1918,7 +1918,6 @@
       $comment->name = check_plain($account->name);
       $comment->signature = $account->signature;
       $comment->signature_format = $account->signature_format;
-      $comment->picture = $account->picture;
     }
     elseif (empty($comment->name)) {
       $comment->name = variable_get('anonymous', t('Anonymous'));
diff -u b/core/modules/user/user.install b/core/modules/user/user.install
--- b/core/modules/user/user.install
+++ b/core/modules/user/user.install
@@ -439,7 +439,7 @@
   // {file_managed}, {file_usage}, and the filesystem.
   if (!module_exists('image')) {
     $sandbox['total'] = 0;
-    $sandbox['#finished'] = 1;
+    $sandbox['processed'] = 0;
   }
   // Initialize total values to process.
   if (!isset($sandbox['total'])) {
@@ -477,8 +477,8 @@
 
     // Report status.
     $sandbox['processed'] += count($results);
-    $sandbox['#finished'] = $sandbox['total'] ? $sandbox['processed'] / $sandbox['total'] : 1;
   }
+  $sandbox['#finished'] = $sandbox['total'] ? $sandbox['processed'] / $sandbox['total'] : 1;
 
   // Delete {users}.picture after processing all values.
   if ($sandbox['#finished'] == 1) {