Add function wc_get_is_pending_statuses

includes/shortcodes/class-wc-shortcode-checkout.php

@@ -116,7 +116,7 @@ class WC_Shortcode_Checkout {
 				}
 
 				// Ensure order items are still stocked if paying for a failed order. Pending orders do not need this check because stock is held.
-				if ( ! $order->has_status( 'pending' ) ) {
+				if ( ! $order->has_status( wc_get_is_pending_statuses() ) ) {
 					$quantities = array();
 
 					foreach ( $order->get_items() as $item_key => $item ) {

includes/wc-order-functions.php

@@ -124,6 +124,16 @@ function wc_get_is_paid_statuses() {
 	return apply_filters( 'woocommerce_order_is_paid_statuses', array( 'processing', 'completed' ) );
 }
 
+/**
+ * Get list of statuses which are consider 'pending payment'.
+ *
+ * @since  3.5.4
+ * @return array
+ */
+function wc_get_is_pending_statuses() {
+	return apply_filters( 'woocommerce_order_is_pending_statuses', array( 'pending' ) );
+}
+
 /**
  * Get the nice name for an order status.
  *