Clear prices transient for variable products after scheduled sale.

includes/wc-product-functions.php

@@ -386,8 +386,8 @@ function wc_scheduled_sales() {
 
 			// Sync parent
 			if ( $parent ) {
-				// We can force variable product prices to sync up by removing their min price meta
-				delete_post_meta( $parent, '_min_price_variation_id' );
+				// Clear prices transient for variable products.
+				delete_transient( 'wc_var_prices_' . $parent );
 
 				// Grouped products need syncing via a function
 				$this_product = wc_get_product( $product_id );

tests/framework/helpers/class-wc-helper-product.php

@@ -133,9 +133,6 @@ class WC_Helper_Product {
 		// Attribute meta
 		update_post_meta( $variation_id, 'attribute_pa_size', 'small' );
 
-		// Add the variation meta to the main product
-		update_post_meta( $product_id, '_min_price_variation_id', $variation_id );
-
 		// Create the variation
 		$variation_id = wp_insert_post( array(
 			'post_title'  => 'Variation #' . ( $product_id + 2 ) . ' of Dummy Product',

woocommerce.php

@@ -271,7 +271,7 @@ final class WooCommerce {
 		include_once( 'includes/class-wc-integrations.php' );                    // Loads integrations
 		include_once( 'includes/class-wc-cache-helper.php' );                    // Cache Helper
 		include_once( 'includes/class-wc-https.php' );                          // https Helper
-		
+
 		if ( defined( 'WP_CLI' ) && WP_CLI ) {
 			include_once( 'includes/class-wc-cli.php' );
 		}