Using django-extensions' CreationDateTimeField with South -


i've upgraded number of

created = django.db.models.datetimefield

to

created = django_extensions.db.fields.creationdatetimefield

however, when run 

./manage.py schemamigration app --auto

then

./manage.py migrate app

i get

runtimewarning: datetimefield received naive datetime (2013-05-13 11:09:45.149280) while time zone support active.

is there special need tell south django-extensions field?

this actual migration code:

def forwards(self, orm):     # changing field 'advertiser.updated'     db.alter_column('advertiser', 'updated', self.gf('django.db.models.fields.datetimefield')())     # changing field 'advertiser.created'     db.alter_column('advertiser', 'created', self.gf('django.db.models.fields.datetimefield')())     # adding field 'campaign.created'     db.add_column('advertiser_campaign', 'created',                   self.gf('django.db.models.fields.datetimefield')(default=datetime.datetime.now, blank=true),                   keep_default=false)      # adding field 'campaign.updated'     db.add_column('advertiser_campaign', 'updated',                   self.gf('django.db.models.fields.datetimefield')(default=datetime.datetime.now, blank=true),                   keep_default=false)


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