Merge pull request #1884 from aihimel/feat/pro-2329-product-category-…

…include-exclude-vendor-coupon

New Walker added for category dropdown multiselect

includes/Order/Hooks.php

@@ -349,10 +349,10 @@ public function ensure_vendor_coupon( $valid, $coupon, $discount ) {
         if ( ! apply_filters( 'dokan_ensure_vendor_coupon', true ) ) {
             return $valid;
         }
-
-        // A coupon must be bound with a product
+      
+        // A coupon must be bound with a product if pro is deactivated
         if ( ! dokan()->is_pro_exists() && count( $coupon->get_product_ids() ) === 0 ) {
-            throw new Exception( esc_html__( 'A coupon must be restricted with a vendor product.', 'dokan-lite' ) );
+            throw new Exception( __( 'A coupon must be restricted with a vendor product.', 'dokan-lite' ) );
         }
 
         $coupon_id = $coupon->get_id();