Merge pull request #2896 from woocommerce/PCP-731-queries-variations-…

…when-button/messaging-is-disabled-on-single-product-page

plugin generates empty div & queries variations when button/messaging is disabled on single product page

modules/ppcp-button/src/Assets/SmartButton.php

@@ -1910,7 +1910,7 @@ protected function product_supports_payment( WC_Product $product ): bool {
 
 		$in_stock = $product->is_in_stock();
 
-		if ( $product->is_type( 'variable' ) ) {
+		if ( ! $in_stock && $product->is_type( 'variable' ) ) {
 			/**
 			 * The method is defined in WC_Product_Variable class.
 			 *