Why does WooCommerce still show the old review count after deleting reviews in the WordPress admin?

I’m working on a WooCommerce store, and I’ve deleted all product reviews from the WordPress admin (including emptying the trash). However, the product page still displays the old review count and average rating.

rating.php

<?php
/**
 * Single Product Rating
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/single-product/rating.php.
 *
 * HOWEVER, on occasion WooCommerce will need to update template files and you
 * (the theme developer) will need to copy the new files to your theme to
 * maintain compatibility. We try to do this as little as possible, but it does
 * happen. When this occurs the version of the template file will be bumped and
 * the readme will list any important changes.
 *
 * @see     https://woocommerce.com/document/template-structure/
 * @package WooCommerceTemplates
 * @version 3.6.0
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit; // Exit if accessed directly.
}

global $product;

if ( ! wc_review_ratings_enabled() ) {
    return;
}

$rating_count = $product->get_rating_count();
$review_count = $product->get_review_count();
$average      = $product->get_average_rating();

if ( $rating_count > 0 ) : ?>
    <div class="woocommerce-rating-debug">
        <p>Rating Count: <?php echo esc_html( $rating_count ); ?></p>
        <p>Review Count: <?php echo esc_html( $review_count ); ?></p>
        <p>Average Rating: <?php echo esc_html( $average ); ?></p>
    </div>

    <div class="woocommerce-product-rating">
        <?php echo wc_get_rating_html( $average, $rating_count ); // WPCS: XSS ok. ?>
        <?php if ( comments_open() ) : ?>
            <?php //phpcs:disable ?>
            <a href="#reviews" class="woocommerce-review-link" rel="nofollow">(<?php printf( _n( '%s customer review', '%s customer reviews', $review_count, 'woocommerce' ), '<span class="count">' . esc_html( $review_count ) . '</span>' ); ?>)</a>
            <?php // phpcs:enable ?>
        <?php endif ?>
    </div>

<?php endif; ?>

Getting results like this even after deleting all reviews and ratings.

Even the product detail page in the admin shows “No comments yet.”

How can I force WooCommerce to fully refresh the product review data to reflect zero reviews?

Any help or insight is appreciated.