v1.18: ledger-tool: Set initial last full snapshot slot (backport of #2314) #2342
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Problem
ledger-tool does not set the initial last full snapshot slot for AccountBackgroundService. This could produce invalid incremental snapshots. Ones that are missing zero lamport accounts. In the full snapshot these accounts would still have non-zero lamports, and thus would be resurrected on startup. This is bad.
Summary of Changes
Set the initial last full snapshot slot.
A useful additional piece of info: #2314 (comment)
This is an automatic backport of pull request #2314 done by [Mergify](https://mergify.com).