Minor cleanup

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

@@ -74,6 +74,8 @@ VaultDeposit::preclaim(PreclaimContext const& ctx)
     auto const sleIssuance = ctx.view.read(keylet::mptIssuance(mptIssuanceID));
     if (!sleIssuance)
         return tefINTERNAL;
+    if (sleIssuance->isFlag(lsfMPTLocked))
+        return tefINTERNAL;
 
     // Cannot deposit inside Vault an Asset frozen for the depositor
     if (isFrozen(ctx.view, account, vaultAsset))

src/xrpld/ledger/detail/View.cpp

@@ -1187,7 +1187,7 @@ addEmptyHolding(
     auto const mpt = view.peek(keylet::mptIssuance(mptID));
     if (!mpt)
         return tecOBJECT_NOT_FOUND;
-    if (mpt->getFlags() & lsfMPTLocked)
+    if (mpt->isFlag(lsfMPTLocked))
         return tecLOCKED;
     if (view.peek(keylet::mptoken(mptID, accountID)))
         return tecDUPLICATE;