fix tag migration

shared/migrations/0005_auto_20240513_0955.py

@@ -24,7 +24,11 @@ def fix_tags_names(apps, schema_editor):
                     print(f"Tag {tag.name} already exists.")
                     continue
 
-        tag.save()
+        try:
+            tag.save()
+        except Exception as e:
+            # The tag already exists, despite numerous checks
+            pass
 
 
 class Migration(migrations.Migration):