bugfix: evm root is not unique anymore, so this check is wrong

core/block_validator.go

@@ -61,12 +61,6 @@ func NewBlockValidator(config *params.ChainConfig, headerChain *HeaderChain, eng
 // validated at this point.
 func (v *BlockValidator) ValidateBody(block *types.WorkObject) error {
 	nodeCtx := v.config.Location.Context()
-	// Check whether the block's known, and if not, that it's linkable
-	if nodeCtx == common.ZONE_CTX && v.hc.ProcessingState() {
-		if v.hc.bc.processor.HasBlockAndState(block.Hash(), block.NumberU64(nodeCtx)) {
-			return ErrKnownBlock
-		}
-	}
 	header := block.Header()
 	// Subordinate manifest must match ManifestHash in subordinate context, _iff_
 	// we have a subordinate (i.e. if we are not a zone)