diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-templates-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-templates-controller.php
index 2156cd79f6..4ca84ad03c 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-templates-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-templates-controller.php
@@ -596,7 +596,7 @@ class WP_REST_Templates_Controller extends WP_REST_Controller {
 				$changes->tax_input['wp_template_part_area'] = _filter_block_template_part_area( $request['area'] );
 			} elseif ( null !== $template && 'custom' !== $template->source && $template->area ) {
 				$changes->tax_input['wp_template_part_area'] = _filter_block_template_part_area( $template->area );
-			} elseif ( ! $template->area ) {
+			} elseif ( empty( $template->area ) ) {
 				$changes->tax_input['wp_template_part_area'] = WP_TEMPLATE_PART_AREA_UNCATEGORIZED;
 			}
 		}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5a063aa849..7493b3d6a5 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.3-beta4-56247';
+$wp_version = '6.3-beta4-56248';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.