**Describe the bug** In block 265111 of the testnet `genesis-alpha`, tx 20, a wrong sequence number was used. Still the tx made it into the block. **Expected behavior** Erroneous txs should not be comitted. **Screenshots** <img width="1414" alt="bildschirmfoto 2018-09-11 um 00 08 21" src="https://user-images.githubusercontent.com/6912756/45327351-7684d880-b557-11e8-871d-8a30173244e9.png">
Describe the bug
In block 265111 of the testnet
genesis-alpha, tx 20, a wrong sequence number was used. Still the tx made it into the block.Expected behavior
Erroneous txs should not be comitted.
Screenshots
