[R4R]fix blockhash not correct for the logs of system tx receipt #444
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Description
This PR is target to fix #443
Rationale
When parlia engine process the system tx, the preparation of statedb is not correct, the blockhash is empty, so the logs of generated receipts did not assign with correct blockhash.
This issue is exposed only after we add the cache of receipts. This PR did not fix the issue thoroughly, it will need a hardfork to fix this.
Example
Changes
Notable changes:
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Related issues
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