evidence: fix data race in Pool.updateValToLastHeight() (#5100)
evidence: fix data race in Pool.updateValToLastHeight() (#5100)

Fixes #5098.

Is this out in a public release? If so, I'll add a changelog entry as well, for backporting.
tendermint/tendermint,tendermint/tendermint,tendermint/tendermint,tendermint/tendermint