wallet_api: move adjust_mixin call within try block

src/wallet/api/wallet.cpp

@@ -58,7 +58,6 @@ namespace Monero {
 
 namespace {
     // copy-pasted from simplewallet
-    static const size_t DEFAULT_MIXIN = 6;
     static const int    DEFAULT_REFRESH_INTERVAL_MILLIS = 1000 * 10;
     // limit maximum refresh interval as one minute
     static const int    MAX_REFRESH_INTERVAL_MILLIS = 1000 * 60 * 1;
@@ -1491,13 +1490,6 @@ PendingTransaction *WalletImpl::createTransactionMultDest(const std::vector<stri
       
     cryptonote::address_parse_info info;
 
-    // indicates if dst_addr is integrated address (address + payment_id)
-    // TODO:  (https://bitcointalk.org/index.php?topic=753252.msg9985441#msg9985441)
-    size_t fake_outs_count = mixin_count > 0 ? mixin_count : m_wallet->default_mixin();
-    if (fake_outs_count == 0)
-        fake_outs_count = DEFAULT_MIXIN;
-    fake_outs_count = m_wallet->adjust_mixin(fake_outs_count);
-
     uint32_t adjusted_priority = m_wallet->adjust_priority(static_cast<uint32_t>(priority));
 
     PendingTransactionImpl * transaction = new PendingTransactionImpl(*this);
@@ -1563,6 +1555,9 @@ PendingTransaction *WalletImpl::createTransactionMultDest(const std::vector<stri
             break;
         }
         try {
+            size_t fake_outs_count = mixin_count > 0 ? mixin_count : m_wallet->default_mixin();
+            fake_outs_count = m_wallet->adjust_mixin(mixin_count);
+
             if (amount) {
                 transaction->m_pending_tx = m_wallet->create_transactions_2(dsts, fake_outs_count, 0 /* unlock_time */,
                                                                             adjusted_priority,