diff --git a/src/core/ConversationModel.cpp b/src/core/ConversationModel.cpp
index 06969f7..fedccbb 100644
--- a/src/core/ConversationModel.cpp
+++ b/src/core/ConversationModel.cpp
@@ -111,6 +111,9 @@ void ConversationModel::sendMessage(const QString &text)
                 message.status = Error;
             message.identifier = id;
             message.attemptCount++;
+
+            // DEBUGGING ONLY: send identical message twice to test issue #515
+            channel->sendChatMessageWithId(text, QDateTime(), id);
         }
     }