`AttributeError: '_TaggableManager' object has no attribute 'field'` with django-simple-history

[leplatrem]

I suppose that django-taggit and django-simple-history can work together, but can't figure it out, and can't find a full working example :(

I would like to enable history on the m2m relationship that django-taggit adds to my model, but the TaggableManager does not seem to have the necessary fields (?).

Using the following model definition:

from simple_history.models import HistoricalRecords
from taggit.managers import TaggableManager

class MyModel(models.Model):
    tags = TaggableManager()
    history = HistoricalRecords(m2m_fields=[tags])

I get this error:

  File "/Users/mathieu/Code/Perso/collect/.venv/lib/python3.12/site-packages/simple_history/models.py", line 794, in get_m2m_fields_from_model
    return [getattr(model, field_name).field for field_name in field_names]
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: '_TaggableManager' object has no attribute 'field'

Although it looks very similar to what django-simple-history shows in the docs:

class Category(models.Model):
    name = models.CharField(max_length=200)

class Poll(models.Model):
    question = models.CharField(max_length=200)
    categories = models.ManyToManyField(Category)
    history = HistoricalRecords(m2m_fields=[categories])

What makes the TaggableManager different from a normal ManyToMany field?
What could I do to "trick" simple_history's HistoricalRecords m2m fields inspection?

Thank you for your support and great lib 🙏

Related #501