From e70312845c379b1416eac19b30f1d6f21a7bf5ea Mon Sep 17 00:00:00 2001
From: Ben Dwyer <ben@escruffian.com>
Date: Fri, 20 Jan 2023 16:06:21 +0800
Subject: [PATCH] move the check

---
 packages/block-library/src/navigation/index.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/block-library/src/navigation/index.php b/packages/block-library/src/navigation/index.php
index 1d430b1af84c36..dcb98180b2a2cf 100644
--- a/packages/block-library/src/navigation/index.php
+++ b/packages/block-library/src/navigation/index.php
@@ -469,9 +469,7 @@ function block_core_navigation_get_fallback_blocks() {
 		$fallback_blocks = ! empty( $maybe_fallback ) ? $maybe_fallback : $fallback_blocks;
 	}
 
-	if ( block_core_navigation_has_nested_core_navigation( $parsed_blocks ) ) {
-		return [];
-	}
+
 
 	/**
 	 * Filters the fallback experience for the Navigation block.
@@ -646,6 +644,11 @@ function render_block_core_navigation( $attributes, $content, $block ) {
 		$inner_blocks = new WP_Block_List( $fallback_blocks, $attributes );
 	}
 
+	$parsed_blocks = parse_blocks( $navigation_post->post_content );
+	if ( block_core_navigation_has_nested_core_navigation( $parsed_blocks ) ) {
+		return '';
+	}
+
 	/**
 	 * Filter navigation block $inner_blocks.
 	 * Allows modification of a navigation block menu items.