Bug using django ORM to update inherited history_change_reason field

[noamk-hl]

Describe the bug
When using HistoricalRecords(inherit=True, history_change_reason_field=...), calling update(history_change_reason=...) on the history model will update an incorrect model due to the reason field being shared between any derived model.

To Reproduce
With the models

from django.db import models
from simple_history.models import HistoricalRecords


class Base(models.Model):
    history = HistoricalRecords(
        inherit=True, history_change_reason_field=models.TextField()
    )


class Derived1(Base):
    pass


class Derived2(Base):
    pass

Run the following

d1 = Derived1.history.create(history_change_reason='reason1', id=1, history_date=timezone.now())
d2 = Derived2.history.create(history_change_reason='reason2', id=1, history_date=timezone.now())

Derived1.history.update(history_change_reason='new_reason1')

d1.refresh_from_db()
d2.refresh_from_db()

print(d1.history_change_reason)
print(d2.history_change_reason)

Resulting in

reason1
new_reason1

Expected behavior
The correct historical model should be updated.

Environment (please complete the following information):

• Django Simple History Version: 3.7.0
• Django Version: 5.1.4
• Database Version: SQLite 3.47.2