diff --git a/libraries/chain/db_block.cpp b/libraries/chain/db_block.cpp
index 82f21dbb..15c95378 100644
--- a/libraries/chain/db_block.cpp
+++ b/libraries/chain/db_block.cpp
@@ -141,14 +141,6 @@ void database::check_tansaction_for_duplicated_operations(const signed_transacti
       }
    });
    
-   for (auto& pending_transaction: _pending_tx)
-   {
-      for (auto& operation: pending_transaction.operations)
-      {
-         existed_operations_digests.insert(fc::digest(operation));
-      }
-   }
-   
    proposed_operations_digest_accumulator digest_accumulator;
    for (auto& operation: trx.operations)
    {
diff --git a/tests/tests/network_broadcast_api_tests.cpp b/tests/tests/network_broadcast_api_tests.cpp
index dd073cfa..f50b61e5 100644
--- a/tests/tests/network_broadcast_api_tests.cpp
+++ b/tests/tests/network_broadcast_api_tests.cpp
@@ -65,7 +65,7 @@ namespace
         
         for (auto& operation: operations)
         {
-            operation_proposal.proposed_ops = {op_wrapper(operation)};
+            operation_proposal.proposed_ops.push_back(op_wrapper(operation));
         }
         
         signed_transaction transaction;