From c0d5b619328af285787f76d296c61cce35bdf243 Mon Sep 17 00:00:00 2001
From: Lukas Winkler <git@lw1.at>
Date: Sun, 14 Jun 2020 16:21:39 +0200
Subject: [PATCH] fix clean on edit

---
 acros/models/Acronym.py | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/acros/models/Acronym.py b/acros/models/Acronym.py
index 9e191c4..67b6908 100644
--- a/acros/models/Acronym.py
+++ b/acros/models/Acronym.py
@@ -43,10 +43,11 @@ class Acronym(models.Model):
         ordering = ["name"]
 
     def clean(self):
-        new_slug = slugify(self.name)
-        try:
-            found = Acronym.objects.get(slug=new_slug)
-        except Acronym.DoesNotExist:
-            found = False
-        if found:
-            raise ValidationError(f"slug '{new_slug}' already exists")
+        if not self.id:
+            new_slug = slugify(self.name)
+            try:
+                found = Acronym.objects.get(slug=new_slug)
+            except Acronym.DoesNotExist:
+                found = False
+            if found:
+                raise ValidationError(f"slug '{new_slug}' already exists")