The help tells me I should unlock my encrypted wallet:

```
> help migratewallet

...
Requires wallet passphrase to be set with walletpassphrase call if wallet is encrypted.
```

But when I do so and attempt to migrate the wallet I'm told that I've entered my password for needlessly:

```
> migratewallet

Error: migratewallet on encrypted wallets is currently unsupported.
```

<!-- What version of Bitcoin Core are you using, where did you get it (website, self-compiled, etc)? -->

v24.0.1

{
    return RPCHelpMan{"upgradewallet",
        "\nUpgrade the wallet. Upgrades to the latest version if no version number is specified.\n"
        "New keys may be generated and a new wallet backup will need to be made.",
        {
            {"version", RPCArg::Type::NUM, RPCArg::Default{int{FEATURE_LATEST}}, "The version number to upgrade to. Default is the latest wallet version."}
        },
        RPCResult{
            RPCResult::Type::OBJ, "", "",
            {
                {RPCResult::Type::STR, "wallet_name", "Name of wallet this operation was performed on"},
                {RPCResult::Type::NUM, "previous_version", "Version of wallet before this operation"},
                {RPCResult::Type::NUM, "current_version", "Version of wallet after this operation"},
                {RPCResult::Type::STR, "result", true, "Description of result, if no error"},
                {RPCResult::Type::STR, "error", true, "Error message (if there is one)"}
            },
        },
        RPCExamples{
            HelpExampleCli("upgradewallet", "169900")
            + HelpExampleRpc("upgradewallet", "169900")
        },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{
    std::shared_ptr<CWallet> const pwallet = GetWalletForJSONRPCRequest(request);
    if (!pwallet) return UniValue::VNULL;
    EnsureWalletIsUnlocked(*pwallet);
    int version = 0;