Clear the send queue when disconnected as well.

main.py

@@ -257,11 +257,6 @@ def receive_cb(server_name, file_descriptor):
 
             server.disconnect()
 
-            # Queue the failed message for resending
-            if server.receive_queue:
-                message = server.receive_queue.popleft()
-                server.send_queue.appendleft(message)
-
             return W.WEECHAT_RC_OK
 
         if not data:
@@ -274,11 +269,6 @@ def receive_cb(server_name, file_descriptor):
                 ("{prefix}matrix: disconnecting from server...").format(
                     prefix=W.prefix("network")))
 
-            # Queue the failed message for resending
-            if server.receive_queue:
-                message = server.receive_queue.popleft()
-                server.send_queue.appendleft(message)
-
             server.disconnect()
             break
 

matrix/server.py

@@ -334,6 +334,7 @@ class MatrixServer:
         self.socket = None
         self.connected = False
         self.access_token = ""
+        self.send_queue.clear()
         self.receive_queue.clear()
 
         self.lag = 0