Fix CChain::GetLocator
Fix CChain::GetLocator

(cherry picked from commit 3c85d2ec37c3725e407649e487fbeb2a36606d74)

reddcoin-project/reddcoin,reddcoin-project/reddcoin,reddcoin-project/reddcoin,reddcoin-project/reddcoin,reddcoin-project/reddcoin,reddcoin-project/reddcoin