gtk: mark gtk_flatten_list_model_get_model_for_item as nullable

diff --git a/gtk/gtkflattenlistmodel.c b/gtk/gtkflattenlistmodel.c
index 23b26a35f4693e4df5aa75ebe8d1e9feb40e7c4a..15a164f5c9e67a87c9808550f6c239e725fde429 100644 (file)
--- a/gtk/gtkflattenlistmodel.c
+++ b/gtk/gtkflattenlistmodel.c
@@ -510,7 +510,7 @@ gtk_flatten_list_model_get_model (GtkFlattenListModel *self)
  *
  * Returns the model containing the item at the given position.
  *
- * Returns: (transfer none): the model containing the item at @position
+ * Returns: (transfer none) (nullable): the model containing the item at @position
  */
 GListModel *
 gtk_flatten_list_model_get_model_for_item (GtkFlattenListModel *self,