Fix issues

include/xrpl/protocol/detail/transactions.macro

@@ -1052,7 +1052,7 @@ TRANSACTION(ttLOAN_SET, 80, LoanSet,
 TRANSACTION(ttLOAN_DELETE, 81, LoanDelete,
     Delegation::NotDelegable,
     featureLendingProtocol,
-    NoPriv, ({
+    MayModifyVault, ({
     {sfLoanID, SoeRequired},
 }))
 

include/xrpl/tx/invariants/VaultInvariant.h

@@ -96,6 +96,7 @@ class ValidVault
         Number principalOutstanding = 0;
         Number totalValueOutstanding = 0;
         Number managementFeeOutstanding = 0;
+        uint32_t flags = 0;
 
         // Interest booked to the vault at loan creation: the portion of the
         // total value owed that is neither principal nor broker management fee.

include/xrpl/tx/transactors/lending/LoanSet.h

@@ -24,9 +24,11 @@ class LoanSet : public Transactor
 private:
     static std::uint32_t
     getStartDate(ReadView const& view, STTx const& tx);
+    static bool
+    isTwoStepFlowEnabled(Rules const& rules);
     /* Returns true if the transaction is using the two-step flow. */
     static bool
-    isTwoStepFlow(STTx const& tx, Rules const& rules);
+    isTwoStepFlow(STTx const& tx);
     /* Returns true if the transaction is using the one-step flow. */
     static bool
     isOneStepFlow(STTx const& tx);