diff --git a/include/conversation.php b/include/conversation.php
index f6da5d858a..724d18dfea 100644
--- a/include/conversation.php
+++ b/include/conversation.php
@@ -1541,12 +1541,6 @@ function sort_thr_received_rev(array $a, array $b)
  */
 function sort_thr_commented(array $a, array $b)
 {
-	if ($b['pinned'] && !$a['pinned']) {
-		return 1;
-	} elseif (!$b['pinned'] && $a['pinned']) {
-		return -1;
-	}
-
 	return strcmp($b['commented'], $a['commented']);
 }
 
diff --git a/src/Model/Item.php b/src/Model/Item.php
index 98b058215d..dde33437a5 100644
--- a/src/Model/Item.php
+++ b/src/Model/Item.php
@@ -143,6 +143,15 @@ class Item extends BaseObject
 		return (bool)$useritem['pinned'];
 	}
 
+	/**
+	 * @brief Select pinned rows from the item table for a given user
+	 *
+	 * @param integer $uid       User ID
+	 * @param array   $selected  Array of selected fields, empty for all
+	 *
+	 * @return boolean|object
+	 * @throws \Exception
+	 */
 	public static function selectPinned(int $uid, array $selected = [])
 	{
 		$useritems = DBA::select('user-item', ['iid'], ['uid' => $uid, 'pinned' => true]);