Account.balance(asset_id) always returns 0

[biobdeveloper]

Here is a bug. If you request balance via Asset class or Asset.symbol, all is ok, but when request it via "1.3.id" always returns 0

>>from bitshares.account import Account
>>from bitshares.asset import Asset
>>account = Account('xeroc')
>>account.balance('BTS') == account.balance('1.3.0')
False
>>account.balance('BTS')
637.83586 BTS
>>account.balance('1.3.0')
0.00000 BTS

Also this

>>asset = Asset('BTS')
>>account.balance(asset) == account.balance(asset.identifier)
False
>>account.balance(asset)
637.83586 BTS
>>account.balance(asset.identifier)
0.00000 BTS

>>account.balance('1.3.0') == 0
True

[xeroc]

fixed in python-graphenelib