[1.0-beta3 -> main] P2P: Prevent syncing from running ahead of chain head #290
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P2P syncing was using fork database head for a limited factor on how far ahead to request blocks. With the recent change to ingest blocks quickly into the fork database (AntelopeIO/leap#2385), this allowed the fork database to load hundred of thousands of blocks ahead of chain head.
Use chain head instead of fork database head for sync ahead calculation.
Merges
release/1.0-beta3
intomain
including #282 & #286 & #280Resolves #278