From a97cc5389ae8d9ca8cc76a959f7edf4d38c50b88 Mon Sep 17 00:00:00 2001
From: Philipp Oeser <info@graphics-engineer.com>
Date: Mon, 11 Nov 2019 11:49:29 +0100
Subject: [PATCH] Fix T71452: instance collection to scene from outliner not
 incrementing collection usercount

Maniphest Tasks: T71452

Differential Revision: https://developer.blender.org/D6222
---
 source/blender/editors/space_outliner/outliner_collections.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/source/blender/editors/space_outliner/outliner_collections.c b/source/blender/editors/space_outliner/outliner_collections.c
index 03606282fcd..183a96d1325 100644
--- a/source/blender/editors/space_outliner/outliner_collections.c
+++ b/source/blender/editors/space_outliner/outliner_collections.c
@@ -676,6 +676,7 @@ static int collection_instance_exec(bContext *C, wmOperator *UNUSED(op))
     ob->instance_collection = collection;
     ob->transflag |= OB_DUPLICOLLECTION;
     id_lib_extern(&collection->id);
+    id_us_plus(&collection->id);
   }
 
   BLI_gset_free(data.collections_to_edit, NULL);