From 2d46cef2e88730f40d8927a10102fa9e2a2d4ea3 Mon Sep 17 00:00:00 2001
From: Bastien Montagne <bastien@blender.org>
Date: Wed, 20 Oct 2021 15:21:24 +0200
Subject: [PATCH] Fix T92347: Append function excludes Collections that do not
 contain Objects directly.

Collections directly selected by the user should always be
instantiated.

Regression from recent append code refactor.
---
 source/blender/windowmanager/intern/wm_files_link.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/blender/windowmanager/intern/wm_files_link.c b/source/blender/windowmanager/intern/wm_files_link.c
index 461ae20cf8a..e698702316e 100644
--- a/source/blender/windowmanager/intern/wm_files_link.c
+++ b/source/blender/windowmanager/intern/wm_files_link.c
@@ -462,7 +462,8 @@ static void wm_append_loose_data_instantiate(WMLinkAppendData *lapp_data,
      * children.
      */
     Collection *collection = (Collection *)id;
-    bool do_add_collection = false;
+    /* We always add collections directly selected by the user. */
+    bool do_add_collection = (item->append_tag & WM_APPEND_TAG_INDIRECT) == 0;
     LISTBASE_FOREACH (CollectionObject *, coll_ob, &collection->gobject) {
       Object *ob = coll_ob->ob;
       if (!object_in_any_scene(bmain, ob)) {