update: register Product Template block with skip_inner_blocks

plugins/woocommerce/src/Blocks/BlockTypes/ProductTemplate.php

@@ -26,6 +26,16 @@ class ProductTemplate extends AbstractBlock {
 		return null;
 	}
 
+	/**
+	 * Get extra block settings. Some protected properties are always overriden in
+	 * AbstractBlock::register_block_type().
+	 *
+	 * @return array
+	 */
+	protected function get_extra_block_settings() {
+		return array( 'skip_inner_blocks' => true );
+	}
+
 	/**
 	 * Render the block.
 	 *