Terra854

Managed to replicate this issue here. Including the stack trace to see if it helps: ``` goroutine 3495 [running]: github.com/tendermint/tendermint/blockchain/v0.(*BlockchainReactor).poolRoutine(0xc0012be700, 0x1) /go/pkg/mod/github.com/tendermint/[email protected]/blockchain/v0/reactor.go:401 +0x1265 created by github.com/tendermint/tendermint/blockchain/v0.(*BlockchainReactor).SwitchToFastSync /go/pkg/mod/github.com/tendermint/[email protected]/blockchain/v0/reactor.go:125 +0xef ```