DateTimeField getting corrupted on save if microsecond part has less then 6 positions

[mikluko]

Script below raises AssertionError while it should run successfuly.

from redisco import models
import datetime as dt
import redisco

redisco.connection.flushdb()

class A(models.Model):
    when = models.DateTimeField()

when = dt.datetime(2011, 1, 1, 0, 0, 0, 1)
A.objects.create(when=when)
obj = A.objects.get_by_id(1)

assert obj.when.microsecond == when.microsecond