Add missing step in V3818

patches/server/0976-Rewrite-dataconverter-system.patch

@@ -22650,7 +22650,7 @@ index 0000000000000000000000000000000000000000..29d256c2f5d5e338dc7abeb82c0f1ae9
 +        });
 +
 +        // Step 3
-+        MCTypeRegistry.DATA_COMPONENTS.addStructureWalker(VERSION, new DataWalker<>() {
++        MCTypeRegistry.DATA_COMPONENTS.addStructureWalker(VERSION, 3, new DataWalker<>() {
 +            private static void walkBlockPredicates(final MapType<String> root, final long fromVersion, final long toVersion) {
 +                if (root.hasKey("blocks", ObjectType.STRING)) {
 +                    WalkerUtils.convert(MCTypeRegistry.BLOCK_NAME, root, "blocks", fromVersion, toVersion);