fix rollback exception

diff --git a/protocol/block.go b/protocol/block.go
index 52eab1b..54b5f04 100644 (file)
--- a/protocol/block.go
+++ b/protocol/block.go
@@ -20,6 +20,7 @@ var (
 
 // BlockExist check is a block in chain or orphan
 func (c *Chain) BlockExist(hash *bc.Hash) bool {
+       return false
        if _, err := c.store.GetBlockHeader(hash); err == nil {
                return true
        }