Another hook to be overridden

feincms3_language_sites/models.py

@@ -120,6 +120,10 @@ def _check_feincms3_language_sites_page(cls, **kwargs):
                 hint='Add ("language_code", "path") to unique_together.',
             )
 
+    def _set_parent(self, parent):
+        self.parent = parent
+        self.language_code = parent.language_code if parent else self.language_code
+
     def _clash_candidates(self):
         return super()._clash_candidates().filter(language_code=self.language_code)
 

pyproject.toml

@@ -33,7 +33,7 @@ dynamic = [
 ]
 dependencies = [
   "Django>=3.2",
-  "feincms3>=4.5",
+  "feincms3>=5.0a2",
 ]
 [project.optional-dependencies]
 tests = [