message: compare hashes normalized
diff: @@ -320,6 +320,10 @@ function assert_no_proposal_walkback() {
  local JSON_OUT
  local PROPOSER
  + # normalize hashes
  + WALKBACK_HASH=$(echo $WALKBACK_HASH | tr '[:upper:]' '[:lower:]')
  + CHECK_HASH=$(echo $CHECK_HASH | tr '[:upper:]' '[:lower:]')
  +
  log_step "Checking proposers: Walking back to hash $WALKBACK_HASH..."
  while [ "$CHECK_HASH" != "$WALKBACK_HASH" ]; do
  @@ -334,9 +338,13 @@ function assert_no_proposal_walkback() {
  log "BLOCK HASH $CHECK_HASH: PROPOSER=$PROPOSER, NODE_KEY_HEX=$PUBLIC_KEY_HEX"
  unset CHECK_HASH
  CHECK_HASH=$(echo $JSON_OUT | jq -r '.result.block.header.parent_hash')
  + # normalize
  + CHECK_HASH=$(echo $CHECK_HASH | tr '[:upper:]' '[:lower:]')
  log "Checking next hash: $CHECK_HASH"
  fi
  done
  + log "Walkback Completed!"
  + log "CHECK_HASH: $CHECK_HASH = WALKBACK_HASH: $WALKBACK_HASH"
  log "Node $NODE_ID didn't propose! [expected]"
  }
  