I have been trying to get a ModelMultipleChoiceFilter to work for hours and have read both the DRF and Django Filters documentation.

I want to be able to filter a set of Websites based on the tags that have been assigned to them via a ManyToManyField. For example I want to be able to get a list of websites that have been tagged "Cooking" or "Beekeeping".

Here is the relevant snippet of my current models.py:

```
class SiteTag(models.Model):
    """Site Categories"""
    name = models.CharField(max_length=63)

    def __str__(self):
        return self.name

class Website(models.Model):
    """A website"""
    domain = models.CharField(max_length=255, unique=True)
    description = models.CharField(max_length=2047)
    rating = models.IntegerField(default=1, choices=RATING_CHOICES)
    tags = models.ManyToManyField(SiteTag)
    added = models.DateTimeField(default=timezone.now())
    updated = models.DateTimeField(default=timezone.now())

    def __str__(self):
        return self.domain

```

And my current views.py snippet:

```
class WebsiteFilter(filters.FilterSet):
    # With a simple CharFilter I can chain together a list of tags using &tag=foo&tag=bar - but only returns site for bar (sites for both foo and bar exist).
    tag = django_filters.CharFilter(name='tags__name')

    # THE PROBLEM:
    tags = django_filters.ModelMultipleChoiceFilter(name='name', queryset=SiteTag.objects.all(), lookup_type="eq")

    rating_min = django_filters.NumberFilter(name="rating", lookup_type="gte")
    rating_max = django_filters.NumberFilter(name="rating", lookup_type="lte")

    class Meta:
        model = Website
        fields = ('id', 'domain', 'rating', 'rating_min', 'rating_max', 'tag', 'tags')

class WebsiteViewSet(viewsets.ModelViewSet):
    """API endpoint for sites"""
    queryset = Website.objects.all()
    serializer_class = WebsiteSerializer
    filter_class = WebsiteFilter
    filter_backends = (filters.DjangoFilterBackend, filters.SearchFilter, filters.OrderingFilter,)
    search_fields = ('domain',)
ordering_fields = ('id', 'domain', 'rating',)

```

I have just been testing with the querystring `[/path/to/sites]?tags=News` and I am 100% sure that the appropriate records exist as they work (as described) with a `?tag` (missing the `s`) query.

An example of the other things I have tried is something like:

```
tags = django_filters.ModelMultipleChoiceFilter(name='tags__name', queryset=Website.objects.all(), lookup_type="in")

```

How can I return any Website that has a SiteTag that satisfies `name == A OR name == B OR name == C`?