diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/customize/class-wp-customize-selective-refresh.php
--- a/wp/wp-includes/customize/class-wp-customize-selective-refresh.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/customize/class-wp-customize-selective-refresh.php	Fri Sep 05 18:40:08 2025 +0200
@@ -12,6 +12,7 @@
  *
  * @since 4.5.0
  */
+#[AllowDynamicProperties]
 final class WP_Customize_Selective_Refresh {
 
 	/**
@@ -171,7 +172,7 @@
 			}
 		}
 
-		$switched_locale = switch_to_locale( get_user_locale() );
+		$switched_locale = switch_to_user_locale( get_current_user_id() );
 		$l10n            = array(
 			'shiftClickToEdit' => __( 'Shift-click to edit this element.' ),
 			'clickEditMenu'    => __( 'Click to edit this menu.' ),
@@ -192,7 +193,7 @@
 		);
 
 		// Export data to JS.
-		printf( '<script>var _customizePartialRefreshExports = %s;</script>', wp_json_encode( $exports ) );
+		wp_print_inline_script_tag( sprintf( 'var _customizePartialRefreshExports = %s;', wp_json_encode( $exports ) ) );
 	}
 
 	/**