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Include checkpoints by default in SecureTrie.copy #119
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This PR is a breaking change that by default includes checkpoint metadata in copying a SecureTrie.
See this comment for some more context.
In ethereumjs-vm,
SecureTrie.copyhas been used with the assumption that checkpointing state is not copied, so dependent libraries will have to update accordingly. This PR adds the paramincludeCheckpointstoSecureTrie.copy(identical toCheckpointTrie.copy) so passingfalsecan maintain original behavior.Thanks to @msieczko and @s1na for their insights.