Ticket #60486: vn.patch

src/wp-includes/block-template-utils.php

@@ -1309 +1309 @@
         $theme_json_raw = $tree->get_data();
         // If a version is defined, add a schema.
         if ( $theme_json_raw['version'] ) {
-                $theme_json_version = 'wp/' . substr( $wp_version, 0, 3 );
+                $theme_json_version = 'wp/' . substr( $version, 0, strpos( $version, '-' ) );
                 $schema             = array( '$schema' => 'https://schemas.wp.org/' . $theme_json_version . '/theme.json' );
                 $theme_json_raw     = array_merge( $schema, $theme_json_raw );
         }