AttributeErrors when getting most common tags with latest dev version of Django

[philgyford]

I'm testing an existing, working, project with the very latest commit of Django and I'm getting an error from my custom TaggableManager that I don't get with Django 4.1. I can't see what the problem is.

I have this model:

from django.db import models

class TaggedBookmark(TimeStampedModelMixin, GenericTaggedItemBase):
    tag = models.ForeignKey(
        BookmarkTag,
        on_delete=models.CASCADE,
        related_name="%(app_label)s_%(class)s_items",
    )
class Bookmark(models.Model):
    is_private = models.BooleanField(default=False)
    # other fields

    tags = TaggableManager(manager=_BookmarkTaggableManager, through=TaggedBookmark)

[philgyford]

Sorry, hit Return too quickly and it saved this incomplete issue.