Fixed #12245 -- Corrected target app handling for auto-generated m2m models...

        'db_table': field._get_m2m_db_table(klass._meta),

        'managed': managed,

        'auto_created': klass,

        'app_label': klass._meta.app_label,

        'unique_together': (from_, to)

    })

    # If the models have been split into subpackages, klass.__module__

    # will be the subpackge, not the models module for the app. (See #12168)

    # Compose the actual models module name by stripping the trailing parts

    # of the namespace until we find .models

    parts = klass.__module__.split('.')

    while parts[-1] != 'models':

        parts.pop()

    module = '.'.join(parts)

    # Construct and return the new class.

    return type(name, (models.Model,), {

        'Meta': meta,

        '__module__': module,

        '__module__': klass.__module__,

        from_: models.ForeignKey(klass, related_name='%s+' % name),

        to: models.ForeignKey(to_model, related_name='%s+' % name)

    })

"""

from django.db import models

class Advertisment(models.Model):

    customer = models.CharField(max_length=100)

    publications = models.ManyToManyField("model_package.Publication", null=True, blank=True)

    class Meta:

        app_label = 'model_package'

__test__ = {'API_TESTS': """

>>> from models.publication import Publication

>>> from models.article import Article

>>> from django.contrib.auth.views import Site

>>> a.save()

>>> a.publications.add(p)

>>> a.sites.add(current_site)

>>> a.save()

>>> a = Article.objects.get(id=1)

>>> a

>>> a.sites.count()

1

"""

# Regression for #12248 - Models can exist in the test package, too

>>> ad = Advertisment(customer="Lawrence Journal-World")

>>> ad.save()

>>> ad.publications.add(p)

>>> ad = Advertisment.objects.get(id=1)

>>> ad

<Advertisment: Advertisment object>

>>> ad.publications.count()

1

"""}