Epoch start is not correctly saved

[bowenwang1996]

Currently we save epoch start whenever the block is the first block of an epoch

nearcore/chain/epoch_manager/src/lib.rs

Line 499 in 3744f07

self.save_epoch_start(

but this is not necessarily correct because there could be a fork and the fork can overwrite the epoch start on the canonical chain, which would affect the rpc output for validators endpoint.

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[stale]

This issue has been automatically marked as stale because it has not had recent activity in the last 2 months.
It will be closed in 7 days if no further activity occurs.
Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity in the last 2 months.
It will be closed in 7 days if no further activity occurs.
Thank you for your contributions.