Tendermint: We will re-propose another peer's valid proposal for a given round

[hrxi]

If that peer has sent it to us before we start the round ourselves.

core-rs-albatross/tendermint/src/states/propose.rs

Lines 30 to 37 in 4daec04

	// At least one proposal exists. Broadcast it.
	if let Some((proposal_hash, (vr, signature))) = proposals.iter().next() {
	// A proposal exist. Broadcast it and progress to prevote step.
	log::debug!(
	current_round = self.state.current_round,
	?proposal_hash,
	"Our turn, broadcasting previously set proposal",
	);