I would like to start my algorithm loading the opened positions I already have in my demo account, I have two long and one short, that I can query with https://api-fxpractice.oanda.com/v3/accounts/101-XXX-AAAAAA-0XX/openPositions,

{
"positions": [
{
"instrument": "EUR_USD",
"long": {
"units": "2",
"averagePrice": "1.11041",
"pl": "0.0000",
"resettablePL": "0.0000",
"financing": "-0.0016",
"dividend": "0.0000",
"guaranteedExecutionFees": "0.0000",
"tradeIDs": [
"5",
"7"
],
"unrealizedPL": "0.0106"
},
"short": {
"units": "-1",
"averagePrice": "1.11027",
"pl": "0.0000",
"resettablePL": "0.0000",
"financing": "0.0000",
"dividend": "0.0000",
"guaranteedExecutionFees": "0.0000",
"tradeIDs": [
"9"
],
"unrealizedPL": "-0.0058"
},
"pl": "0.0000",
"resettablePL": "0.0000",
"financing": "-0.0016",
"commission": "0.0000",
"dividend": "0.0000",
"guaranteedExecutionFees": "0.0000",
"unrealizedPL": "0.0048",
"marginUsed": "0.0666"
}
],
"lastTransactionID": "19"
}

but when using Lean I get only the longs.

20191102 09:23:25.931 Trace:: BrokerageSetupHandler.Setup(): Fetching holdings from brokerage...
20191102 09:24:38.046 Trace:: BrokerageSetupHandler.Setup(): Has existing holding: EURUSD: 2 @ $1.11041 - Market: $1.116545

Debugging the code I see the response in OandaRestApiV20::GetAccountHoldings() returns both longs and shorts, but then in the OandaRestApiV20::ConvertHolding(Position position) only long or shorts are returned  (line 684).

I see the Transaction.GetOpenOrders() does not return open positions too and there not a Transaction.GetOpenPositions() api (and the brokerage class is not exposed in the algorithm).

How can I initialize correctly my algorithm with the currently opened positions?