Add a render callback.

packages/block-library/src/query-pagination/index.php

@@ -5,12 +5,36 @@
  * @package WordPress
  */
 
+/**
+ * Renders the `core/query-pagination` block on the server.
+ *
+ * @param array    $attributes Block attributes.
+ * @param string   $content    Block default content.
+ *
+ * @return string Returns the wrapper for the Query pagination.
+ */
+function render_block_core_query_pagination( $attributes, $content ) {
+	$wrapper_attributes = get_block_wrapper_attributes();
+
+	if ( empty( $content ) || ctype_space( $content ) ) {
+		return '';
+	}
+	return sprintf(
+		'<div %1$s>%2$s</div>',
+		$wrapper_attributes,
+		$content
+	);
+}
+
 /**
  * Registers the `core/query-pagination` block on the server.
  */
 function register_block_core_query_pagination() {
 	register_block_type_from_metadata(
-		__DIR__ . '/query-pagination'
+		__DIR__ . '/query-pagination',
+		array(
+			'render_callback' => 'render_block_core_query_pagination',
+		)
 	);
 }
 add_action( 'init', 'register_block_core_query_pagination' );

packages/block-library/src/query-pagination/save.js

@@ -1,12 +1,10 @@
 /**
  * WordPress dependencies
  */
-import { InnerBlocks, useBlockProps } from '@wordpress/block-editor';
+import { InnerBlocks } from '@wordpress/block-editor';
 
 export default function save() {
 	return (
-		<div { ...useBlockProps.save() }>
-			<InnerBlocks.Content />
-		</div>
+		<InnerBlocks.Content />
 	);
 }