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-rw-r--r--core/types/block.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/core/types/block.go b/core/types/block.go
index 99d6cc8..0a93601 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -330,6 +330,9 @@ func (b *Block) SetExtraData(data []byte) {
}
func (b *Block) ExtraData() []byte {
+ if b.extdata == nil {
+ return nil
+ }
return *b.extdata
}