sendrawtransaction and txn-mempool-conflict When i sendrawtransaction to bitcoind, i get error (exceptions) 18: txn-mempool-conflict (use Bitcoin JSON-RPC denpamusic/php-bitcoinrpc)
But the transaction is sent to the network and is subsequently confirmed.

Example one decoded transaction : https://jsfiddle.net/rn58a4j6/

then i send this transaction:
94ec12fc463230b4285a29b047608627c05572a4c6eabe6688a201ce49ae72f7
To solve this problem, I restarted bitcoind.

I think that maybe when i was developing my project, I made a bad transaction and it saved in mempool