sanity check read_header
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@ -242,6 +242,8 @@ class Blockchain(util.PrintError):
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def read_header(self, height):
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def read_header(self, height):
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assert self.parent_id != self.checkpoint
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assert self.parent_id != self.checkpoint
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if height < 0:
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return
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if height < self.checkpoint:
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if height < self.checkpoint:
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return self.parent().read_header(height)
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return self.parent().read_header(height)
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if height > self.height():
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if height > self.height():
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