diff --git a/includes/comment.inc b/includes/comment.inc
index 84d46ae..b8f394c 100644
--- a/includes/comment.inc
+++ b/includes/comment.inc
@@ -574,9 +574,39 @@ function project_issue_update_by_comment($comment_data, $op) {
   // Update the issue title.
   $node = node_load($comment_data->nid, NULL, TRUE);  // Don't use cached since we changed data above.
   $node->title = $comment_data->title;
+  $node->changed = time();
 
-  // This also updates the changed date of the issue.
-  node_save($node);
+  // Saving the node would potentially create a new revision and change the node
+  // revision author to the current user.
+  // @see node_save(), _node_save_revision()
+  // Because of that, node_save() cannot be invoked here. Instead, we update
+  // the node record manually, and resemble the remaining logic of node_save().
+
+  // Disable new revision flag, and perform the update.
+  $node->revision = 0;
+  $op = 'update';
+
+  // Let modules modify the node before it is saved to the database.
+  node_invoke_nodeapi($node, 'presave');
+
+  db_query("UPDATE {node} SET title = '%s', changed = %d WHERE nid = %d", array(
+    $node->title,
+    $node->changed,
+    $node->nid,
+  ));
+
+  // Call the node specific callback (if any).
+  node_invoke($node, $op);
+  node_invoke_nodeapi($node, $op);
+
+  // Update the node access table for this node.
+  node_access_acquire_grants($node);
+
+  // Clear the page and block caches.
+  cache_clear_all();
+
+  // Clear the static node_load() cache.
+  node_load(NULL, NULL, TRUE);
 
   // Return the object of comment data we used to update the issue.
   return $comment_data;