Function should_reconciliation_update 

pub fn should_reconciliation_update(
    order: &OrderAny,
    report: &OrderStatusReport,
) -> bool

Checks if the order should be updated based on quantity, price, or trigger price differences from the venue report.

A None value in report.price or report.trigger_price is treated as “venue did not include this field” rather than as drift, so a partial snapshot (for example, a Filled report that omits price but supplies avg_px) does not trigger a spurious OrderUpdated.