[gnome-text-editor] savechangesdialog: ensure we always have dialog pointer

[Christian Hergert <chergert src gnome org>]

commit 45e3c3d67d4c010d1fa8cc7afab9284be0dca160
Author: Christian Hergert <chergert redhat com>
Date:   Sun Aug 1 09:45:41 2021 -0700

    savechangesdialog: ensure we always have dialog pointer
    
    This makes it easier to get the parent window using :transient-for.

 src/editor-save-changes-dialog.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/editor-save-changes-dialog.c b/src/editor-save-changes-dialog.c
index 191b91b..929be9d 100644
--- a/src/editor-save-changes-dialog.c
+++ b/src/editor-save-changes-dialog.c
@@ -378,7 +378,8 @@ _editor_save_changes_dialog_run_async (GtkWindow           *parent,
   g_return_if_fail (!parent || GTK_IS_WINDOW (parent));
   g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
 
-  task = g_task_new (NULL, cancellable, callback, user_data);
+  dialog = _editor_save_changes_dialog_new (parent, pages);
+  task = g_task_new (dialog, cancellable, callback, user_data);
   g_task_set_source_tag (task, _editor_save_changes_dialog_run_async);
 
   if (pages == NULL || pages->len == 0)
@@ -387,7 +388,6 @@ _editor_save_changes_dialog_run_async (GtkWindow           *parent,
       return;
     }
 
-  dialog = _editor_save_changes_dialog_new (parent, pages);
   g_object_set_data_full (G_OBJECT (dialog),
                           "TASK",
                           g_steal_pointer (&task),