wallet2: fix tx sanity check triggering on pre-rct outputs

src/wallet/wallet2.cpp

@@ -8052,13 +8052,16 @@ std::pair<std::set<uint64_t>, size_t> outs_unique(const std::vector<std::vector<
   return std::make_pair(std::move(unique), total);
 }
 
-void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs, const std::vector<size_t> &selected_transfers, size_t fake_outputs_count)
+void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs, const std::vector<size_t> &selected_transfers, size_t fake_outputs_count, bool rct)
 {
   std::vector<uint64_t> rct_offsets;
   for (size_t attempts = 3; attempts > 0; --attempts)
   {
     get_outs(outs, selected_transfers, fake_outputs_count, rct_offsets);
 
+    if (!rct)
+      return;
+
     const auto unique = outs_unique(outs);
     if (tx_sanity_check(unique.first, unique.second, rct_offsets.empty() ? 0 : rct_offsets.back()))
     {
@@ -8696,7 +8699,7 @@ void wallet2::transfer_selected(const std::vector<cryptonote::tx_destination_ent
     THROW_WALLET_EXCEPTION_IF(subaddr_account != m_transfers[*i].m_subaddr_index.major, error::wallet_internal_error, "the tx uses funds from multiple accounts");
 
   if (outs.empty())
-    get_outs(outs, selected_transfers, fake_outputs_count); // may throw
+    get_outs(outs, selected_transfers, fake_outputs_count, false); // may throw
 
   //prepare inputs
   LOG_PRINT_L2("preparing outputs");
@@ -8897,10 +8900,12 @@ void wallet2::transfer_selected_rct(std::vector<cryptonote::tx_destination_entry
     MDEBUG("We will create " << n_multisig_txes << " txes");
   }
 
+  bool all_rct = true;
   uint64_t found_money = 0;
   for(size_t idx: selected_transfers)
   {
     found_money += m_transfers[idx].amount();
+    all_rct &= m_transfers[idx].is_rct();
   }
 
   LOG_PRINT_L2("wanted " << print_money(needed_money) << ", found " << print_money(found_money) << ", fee " << print_money(fee));
@@ -8911,7 +8916,7 @@ void wallet2::transfer_selected_rct(std::vector<cryptonote::tx_destination_entry
     THROW_WALLET_EXCEPTION_IF(subaddr_account != m_transfers[*i].m_subaddr_index.major, error::wallet_internal_error, "the tx uses funds from multiple accounts");
 
   if (outs.empty())
-    get_outs(outs, selected_transfers, fake_outputs_count); // may throw
+    get_outs(outs, selected_transfers, fake_outputs_count, all_rct); // may throw
 
   //prepare inputs
   LOG_PRINT_L2("preparing outputs");

src/wallet/wallet2.h

@@ -1605,7 +1605,7 @@ private:
     void set_unspent(size_t idx);
     bool is_spent(const transfer_details &td, bool strict = true) const;
     bool is_spent(size_t idx, bool strict = true) const;
-    void get_outs(std::vector<std::vector<get_outs_entry>> &outs, const std::vector<size_t> &selected_transfers, size_t fake_outputs_count);
+    void get_outs(std::vector<std::vector<get_outs_entry>> &outs, const std::vector<size_t> &selected_transfers, size_t fake_outputs_count, bool rct);
     void get_outs(std::vector<std::vector<get_outs_entry>> &outs, const std::vector<size_t> &selected_transfers, size_t fake_outputs_count, std::vector<uint64_t> &rct_offsets);
     bool tx_add_fake_output(std::vector<std::vector<tools::wallet2::get_outs_entry>> &outs, uint64_t global_index, const crypto::public_key& tx_public_key, const rct::key& mask, uint64_t real_index, bool unlocked) const;
     bool should_pick_a_second_output(bool use_rct, size_t n_transfers, const std::vector<size_t> &unused_transfers_indices, const std::vector<size_t> &unused_dust_indices) const;