Merge branch 'develop'

src/wallet/wallet2.cpp

@@ -2415,6 +2415,7 @@ bool wallet2::get_yield_summary_info(uint64_t &total_burnt,
   // Iterate over the transfers in our wallet
   std::map<size_t, size_t> map_payouts;
   std::map<std::string, std::pair<size_t, std::pair<uint64_t, uint64_t>>> payouts_active;
+  if (m_transfers.size() > 0) {
     for (size_t idx = m_transfers.size()-1; idx>0; --idx) {
       const tools::wallet2::transfer_details& td = m_transfers[idx];
       //if (td.m_block_height < ybi_data[0].block_height) break;
@@ -2431,7 +2432,7 @@ bool wallet2::get_yield_summary_info(uint64_t &total_burnt,
           map_payouts[td.m_td_origin_idx] = idx;
       }
     }
-
+  }
   
   // Scan the entries we have received to gather the state (total yield over period captured)
   total_burnt = 0;