Hi everyone, Im testing some functionalities, and I would like to understand what happened in this testnet transaction:
https://tbtc.blockr.io/tx/info/a4172e747120b2336398b1e3661ea0b81f634d67c9e3daa95215ec4a9cf4ca80

Theoretically, mknda3aU9LH4BAL2eqeegQRnShhQawoUWo sent 1.5 BTC to mnuR8XwU7jg6ryCtJ4dJXZu6wXjiaiguLz, but it seems that it used mhdpHdGbkoTXCfkZZQhJUgQrFiTytwB5gu unspent transactions. Why did this happen?