Revert "Remove single stake modifier checkpoint for testnet"
Revert "Remove single stake modifier checkpoint for testnet"

This reverts commit cc07cf8d7efdc63b7ce80c6017ae70ed4fa93dcd.

NeblioTeam/neblio,NeblioTeam/neblio,NeblioTeam/neblio,NeblioTeam/neblio,NeblioTeam/neblio