Show the unstableLocation menu items even if there are inner blocks, …

…as long as there are items at that location.

packages/block-library/src/navigation/index.php

@@ -254,13 +254,13 @@ function render_block_core_navigation( $attributes, $content, $block ) {
 	$inner_blocks = $block->inner_blocks;
 
 	// If `__unstableLocation` is defined and:
+	// - we have menu items at the defined location
 	// - we don't have a relationship to a `wp_navigation` Post (via `navigationMenuId`).
-	// - we don't have any inner blocks (e.g. a block pattern).
 	// ...then create inner blocks from the classic menu assigned to that location.
 	if (
 		array_key_exists( '__unstableLocation', $attributes ) &&
 		! array_key_exists( 'navigationMenuId', $attributes ) &&
-		empty( $inner_blocks )
+		! empty( gutenberg_get_menu_items_at_location( $attributes['__unstableLocation'] ) )
 	) {
 		$menu_items = gutenberg_get_menu_items_at_location( $attributes['__unstableLocation'] );
 		if ( empty( $menu_items ) ) {