'Return the cached, regular value of ``field`` for `records[0]`, or ``default``.'

def get(self, field, default=None):

    if isinstance(field, basestring):
        field = self._recs._fields[field]
    dummy = SpecialValue(None)
    value = self._recs.env.cache[field].get(self._recs.id, dummy)
    return (default if isinstance(value, SpecialValue) else value)
