From befe6cb95c90f528b3850cf7dd875686aed0673f Mon Sep 17 00:00:00 2001
From: Falk David <falk@blender.org>
Date: Mon, 26 Jun 2023 12:20:46 +0200
Subject: [PATCH] Fix: Unlinking GP layer from layer group

The `unlink_layer` function did not clear the parent pointer of the
layer itself.
---
 source/blender/blenkernel/intern/grease_pencil.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/source/blender/blenkernel/intern/grease_pencil.cc b/source/blender/blenkernel/intern/grease_pencil.cc
index f250e9de7e7..e2efbfd36fc 100644
--- a/source/blender/blenkernel/intern/grease_pencil.cc
+++ b/source/blender/blenkernel/intern/grease_pencil.cc
@@ -609,6 +609,7 @@ bool LayerGroup::unlink_layer(Layer *link)
 {
   if (BLI_remlink_safe(&this->children, link)) {
     this->tag_nodes_cache_dirty();
+    link->base.parent = nullptr;
     return true;
   }
   return false;