Ethan Buchman 47a0669d12
Fix fast sync stack with wrong block #2457 (#2731)
* fix fastsync may stuck by a wrong block

* fixes from updates

* fixes from review

* Align spec with the changes

* fmt
2018-11-26 15:31:11 -05:00
..
2018-10-02 11:52:56 +04:00