Added changelog and added obj to get_prepopulated_fields

Author: Bernardvdv

CHANGELOG.rst

@@ -5,6 +5,7 @@ Changelog
 Unreleased
 ==========
 
+* fix: Slug field on list display for admin should only be displayed when versioning is not available
 
 4.0.0.dev2 (2021-12-22)
 =======================

djangocms_snippet/admin.py

@@ -57,7 +57,7 @@ def get_search_fields(self, request):
             search_fields.append('slug')
         return search_fields
 
-    def get_prepopulated_fields(self, request):
+    def get_prepopulated_fields(self, obj, request):
         prepopulated_fields = super().get_prepopulated_fields(request)
         if not djangocms_versioning_enabled:
             prepopulated_fields = {'slug': ('name',)}