Disallow regular Clawback on Vault accounts

src/libxrpl/protocol/TER.cpp

@@ -126,6 +126,7 @@ transResults()
         MAKE_ERROR(tecWRONG_ASSET,                   "Wrong asset given."),
         MAKE_ERROR(tecLIMIT_EXCEEDED,                "Limit exceeded."),
         MAKE_ERROR(tecINVALID_DOMAIN,                "Invalid permissioned domain."),
+        MAKE_ERROR(tecVAULT_ACCOUNT,                 "This operation is not allowed on a Vault Account."),
 
         MAKE_ERROR(tefALREADY,                     "The exact transaction was already in this ledger."),
         MAKE_ERROR(tefBAD_ADD_AUTH,                "Not authorized to add account."),

src/xrpld/app/tx/detail/Clawback.cpp

@@ -210,6 +210,10 @@ Clawback::preclaim(PreclaimContext const& ctx)
     if (sleHolder->isFieldPresent(sfAMMID))
         return tecAMM_ACCOUNT;
 
+    if (ctx.view.rules().enabled(featureSingleAssetVault) &&
+        sleHolder->isFieldPresent(sfVaultID))
+        return tecVAULT_ACCOUNT;
+
     return std::visit(
         [&]<typename T>(T const&) {
             return preclaimHelper<T>(