fix initial block download
fix initial block download

DigiByte-Team/digibyte,DigiByte-Team/digibyte,digibyte/digibyte,digibyte/digibyte,DigiByte-Team/digibyte,DigiByte-Team/digibyte,digibyte/digibyte,digibyte/digibyte,DigiByte-Team/digibyte,digibyte/digibyte,digibyte/digibyte,DigiByte-Team/digibyte