Krish e8411fc99e Do not allow duplicate GENESIS block creation - #1556 (#1612)
* Add a check for GENESIS transaction

* Add test and fixture

* Removed database query for GENESIS block

* Undo log level change
2017-07-03 17:21:15 +02:00
..
2016-07-25 13:30:31 +02:00
2017-04-12 14:39:15 +02:00