python 2.7 - django custom field to_python not called when using .values() -

i have simple, custom pctfield multiplies value 100 or else sets 0.0 if it's null. works fine in code like:

class pctfield(models.floatfield):     __metaclass__ = models.subfieldbase      def __init__(self, *args, **kwargs):         kwargs['blank'] = true         kwargs['null'] = true         super(pctfield, self).__init__(*args, **kwargs)      def to_python(self, value):         if value none:             return 0.          return value * 100   class testmodel(models.model):     id = models.integerfield(primary_key=true)     non_pct = models.floatfield(blank=true, null=true)     pct = pctfield()   test = testmodel.objects.get(id=18328) print test.non_pct, test.pct  # prints 0.900227, 90.0227  test1 = testmodel.objects.filter(id=18328) print test1[0].non_pct, test1[0].pct  # prints 0.900227, 90.0227 

later on in code trying limit data returned decided start using .values() on result , passing in dynamic list of fields needed. when did this, to_python function in custom field no longer gets called.

test2 = testmodel.objects.filter(id=18328) print test2.values(*['non_pct', 'pct'])[0]  # prints {'non_pct': 0.900227, 'pct': 0.900227} 

has else seen before? i'm using django 1.6.8....

it's known issue, though apparently still under debate after 6 years whether it's real bug or documentation bug.