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. 
{
static const CRPCCommand commands[] =
{ 
  
    { "rawtransactions",    &fundrawtransaction,             },
    { "wallet",             &abandontransaction,             },
    { "wallet",             &abortrescan,                    },
    { "wallet",             &addmultisigaddress,             },
    { "wallet",             &backupwallet,                   },
    { "wallet",             &bumpfee,                        },
    { "wallet",             &psbtbumpfee,                    },
    { "wallet",             &createwallet,                   },
    { "wallet",             &restorewallet,                  },