P2P: Fix net_plugin requesting same range repeatedly #516
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PR #472 Added additional unneeded check for
!sync_source
instart_sync
to know if a sync was not already in progress. However, if the last request had received all the blocks from the previous request thensync_source
would already be reset. This sets up a race condition such that manystart_sync
calls can kick off a new sync instead of continuing the current one.Also with #472 there is no need to reset
sync_next_expected_num
back to received block when receiving a block already received. This just causes additional requests for blocks already received.Resolves #499