def validate(self, obj, value):
    if (value == '0'):
        value = ''
    value = value.replace('\\n', '\n')
    return super(SeparateUnicode, self).validate(obj, value)
def validate(self, obj, value):
    if (value == '0'):
        value = 
    value = value.replace('\\n', '\n')
    return super(SeparateUnicode, self).validate(obj, value)