From d37b1496bc7cb9e57d5bf46711803bc4d27daf78 Mon Sep 17 00:00:00 2001
From: Gabriel Augendre <gabriel@augendre.info>
Date: Sun, 6 Nov 2022 15:57:26 +0100
Subject: [PATCH] Fix group creation

---
 src/party/forms.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/party/forms.py b/src/party/forms.py
index 134fd7a..2d6d757 100644
--- a/src/party/forms.py
+++ b/src/party/forms.py
@@ -5,15 +5,19 @@ from party.models import Party
 
 
 class PartyForm(forms.ModelForm):
+    def __init__(self, *args, **kwargs):
+        self.original_instance = kwargs.get("instance")
+        super().__init__(*args, **kwargs)
+
     class Meta:
         model = Party
         fields = ["name", "invited_characters"]
 
     def clean_invited_characters(self):
         invited = self.cleaned_data["invited_characters"]
-        if not self.instance:
+        if not self.original_instance:
             return invited
-        members = self.instance.characters.all()
+        members = self.original_instance.characters.all()
         for character in invited:
             if character in members:
                 self.add_error(