floatformat template filter no longer works at all

[jasper@…]

As of a recent commit, the floatformat template filter no longer works at all:

>>> from django.template.defaultfilters import floatformat
>>> import decimal
>>> floatformat(decimal.Decimal('12.345'), 2)
u'12.345'
>>> floatformat(12.345, 2)
u'12.345'
>>> floatformat(12.345, 5)
u'12.345'
>>> floatformat(12.345, -2)
u'12.345'

[jasper@…]

The input value is simply returned due to this exception occurring when floatformat tries to quantize the Decimal instance:

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/Users/.../django/template/defaultfilters.py", line 177, in floatformat
    Context(prec=prec)).as_tuple()
  File "/usr/local/Cellar/python/2.7.2/lib/python2.7/decimal.py", line 2442, in quantize
    'quantize result has too many digits for current context')
  File "/usr/local/Cellar/python/2.7.2/lib/python2.7/decimal.py", line 3844, in _raise_error
    raise error(explanation)
InvalidOperation: quantize result has too many digits for current context

This exception is caught at the end of the floatformat function and input_val is returned.

[jasper@…]

I traced the problem to a build of Python that was incapable of doing proper math with the Decimal class; the bug is not in Django. Apologies for the noise.