Bitcoin Core v0.21.1

`bitcoin-cli walletprocesspsbt` does not trigger a `wallet locked please enter passphrase` warning when using a wallet which holds private keys. To be clear I am experiencing this behavior when using the `default` wallet created by core.

The expected behavior would be to remind the user they are dealing with an encrypted wallet, since `walletprocesspsbt` attempts to access private keys to sign the psbt. It would be useful if a warning were present in the rpc response to remind the user they are dealing with an encrypted wallet. 
return obj;
},
    };
}
static RPCHelpMan setwalletflag()
{
            std::string flags = "";
            for (auto& it : WALLET_FLAG_MAP)
                if (it.second & MUTABLE_WALLET_FLAGS)
                    flags += (flags == "" ? "" : ", ") + it.first;
    return RPCHelpMan{"setwalletflag",
                "\nChange the state of the given wallet flag for a wallet.\n",
                {
                    {"flag", RPCArg::Type::STR, RPCArg::Optional::NO, "The name of the flag to change. Current available flags: " + flags},
                    {"value", RPCArg::Type::BOOL, RPCArg::Default{true}, "The new state."},
                },
                RPCResult{
                    RPCResult::Type::OBJ, "", "",
                    {
                        {RPCResult::Type::STR, "flag_name", "The name of the flag that was modified"},
                        {RPCResult::Type::BOOL, "flag_state", "The new state of the flag"},
                        {RPCResult::Type::STR, "warnings", "Any warnings associated with the change"},
                    }
                },
                RPCExamples{
                    HelpExampleCli("setwalletflag", "avoid_reuse")
                  + HelpExampleRpc("setwalletflag", "\"avoid_reuse\"")
                },
        [&](const RPCHelpMan& self, const JSONRPCRequest& request) -> UniValue
{