extensions/models.py

@@ -429,6 +429,7 @@ class Extension(CreatedModifiedMixin, RatingMixin, TrackChangesMixin, models.Mod
             and self.versions.filter(file__status=File.STATUSES.APPROVED).count() > 0
         )
 
+        # this method is called from post_save signal, this early return above should prevent a loop
         if self.is_listed == should_be_listed:
             return
 

extensions/signals.py

@@ -74,6 +74,8 @@ def _update_version(
     if hasattr(instance, 'version'):
         extension = instance.version.extension
         with transaction.atomic():
+            # it's important to update is_listed before computing latest_version
+            # because latest_version for listed and unlisted extensions are defined differently
             extension.update_is_listed()
             extension.update_latest_version()