SwapV3 does not handle BPT -> Token swaps

[mkflow27]

My understanding is that the intention for SwapV3 is to also handle BPT -> Token swaps. Currently this path is not implemented. The issue arose when working on balancer/backend#896. The pool used was part of the seventh vault deployment. The pool in question (deployed with the ExitFeeHook) is https://sepolia.etherscan.io/address/0xc7436329da34B54fAD1400f400931751E1D06Cf8. package version used was
"@balancer/sdk": "0.25.0"

The relevant code:

const queryOutput = await sdkSwap.query(rpcUrl);
In this case is wanting do query a singleSwapExactIn where the BPT (TokenIn) and WETH (tokenOut). This leads to a TokenNotRegistered["0xc7436329da34b54fad1400f400931751e1d06cf8"]
in the Vault - see this sim: https://dashboard.tenderly.co/mcquardt/project/simulator/14613a09-4243-46a2-9807-a0d5b47c5776

The pool used is:

prismaWeightedPool = prismaPoolFactory.build({
    address: '0xc7436329da34B54fAD1400f400931751E1D06Cf8',
    type: 'WEIGHTED',
    protocolVersion,
    tokens: [WETH, BAL],
    dynamicData: prismaPoolDynamicDataFactory.build({
        totalShares: '0.158113883008415798',
        swapFee: '0.1',
    }),
});



// The token in needs to be the BPT
const tIn = new Token(
    parseFloat('11155111'),
    prismaWeightedPool.address as Address,
    prismaWeightedPool.decimals,
);
const tOut = new Token(
    parseFloat(chainToIdMap[WETH.token.chain]),
    WETH.address as Address,
    WETH.token.decimals,
);
const amountIn = BigInt(1000e6);
paths = (await sorGetPathsWithPools(
    tIn,
    tOut,
    SwapKind.GivenIn,
    amountIn,
    [prismaStablePool, prismaWeightedPool],
    protocolVersion,
    [prismaHook1, prismaHook2],
)) as PathWithAmount[];

const swapPaths: Path[] = paths.map((path) => ({
    protocolVersion,
    inputAmountRaw: path.inputAmount.amount,
    outputAmountRaw: path.outputAmount.amount,
    tokens: path.tokens.map((token) => ({
        address: token.address,
        decimals: token.decimals,
    })),
    pools: path.pools.map((pool) => pool.id),
}));

// build SDK swap from SOR paths
sdkSwap = new Swap({
    chainId: parseFloat(chainToIdMap['SEPOLIA']),
    paths: swapPaths,
    swapKind: SwapKind.GivenIn,
});

const returnAmountSOR = getOutputAmount(paths);
const queryOutput = await sdkSwap.query(rpcUrl);