Martin Zumsande 55b6d7be68 validation: Don't load a snapshot if it's not in the best header chain. ...

If the snapshot is not an ancestor of the most-work header (m_best_header),
syncing from that alternative chain should be prioritised.
Therefore don't accept loading a snapshot in this situation.

If that other chain turns out to be invalid, m_best_header
would be reset and loading the snapshot should be possible again.

Because of the work required to generate a conflicting headers chain,
this should only be possible under extreme circumstances, such as major forks.

2024-07-11 13:06:22 -04:00

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