From 80aa774cce9b531feb60a01e40709fb4fe0252a7 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Sun, 17 Oct 2021 16:41:44 +0200
Subject: Fix admin form map init.

---
 chimere/forms.py | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'chimere/forms.py')

diff --git a/chimere/forms.py b/chimere/forms.py
index bfac727..cd75ec4 100644
--- a/chimere/forms.py
+++ b/chimere/forms.py
@@ -792,7 +792,9 @@ class AreaAdminForm(forms.ModelForm):
                 except ValueError:
                     v = None
                 if not v:
+                    args[0]._mutable = True
                     args[0][k] = None
+                    args[0]._mutable = False
         if 'instance' in keys and keys['instance']:
             instance = keys['instance']
             dct = {'area': (instance.upper_left_corner,
-- 
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