From c86b08b23f4ba068b9955e3544e2c07a4f5b42c7 Mon Sep 17 00:00:00 2001
From: Benjamin Dauvergne <bdauvergne@entrouvert.com>
Date: Tue, 31 Mar 2020 16:21:27 +0200
Subject: [PATCH 3/3] misc: do not show form_parent when it's None (#39803)

---
 wcs/variables.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wcs/variables.py b/wcs/variables.py
index 378540f9..faef6c34 100644
--- a/wcs/variables.py
+++ b/wcs/variables.py
@@ -213,7 +213,8 @@ class LazyFormData(LazyFormDef):
             if key[0] == '_' or key in blacklist:
                 continue
             if key == 'parent':
-                yield key, False  # = recurse
+                if self.parent:
+                    yield key, False  # = recurse
             else:
                 yield key
 
-- 
2.24.0