Possible bug with fetch_related?

[vi...@unessa.net]

Hello djangonauts!

I have a following model with tags:

tags = TaggableManager(through='knuckles.UUIDTaggedItem', blank=True)

where UUIDTaggedItem is:

class UUIDTaggedItem(GenericUUIDTaggedItemBase, TaggedItemBase):

    class Meta:
        verbose_name = "Tag"
        verbose_name_plural = "Tags"

When I query for the tags I get following:

In [18]: e = LiveEvent.objects.get(slug='dj-tony-004')
In [19]: e.tags.all()

Out[19]: <QuerySet [<Tag: 90s>, <Tag: dj tony>, <Tag: house>, <Tag: radioshow>, <Tag: 00's>, <Tag: trance>, <Tag: 90's>, <Tag: eurodance>]>


In [20]: e = LiveEvent.objects.prefetch_related('tags').get(slug='dj-tony-004')
In [21]: e.tags.all()

Out[21]: <QuerySet []>

So when using prefetch_related, I always get empty tags. Not sure if I'm doing something wrong here or if this is a bug?

I'm using Django version 1.11 and django-taggit version 0.22.0