[BUG] Schematic World

[Flash303]

Describe the bug
When loading a world from a schematic like this:

WorldFile file = factory.openWorldFile(BuiltInWorldFileType.SCHEMATIC, Path.of(schematicPath));
file.toWorld(factory, virtualWorld, 0, 100, 0);

block data is not loaded correctly.

For example, buttons lose their data:

The same problem happens with other blocks: diorite is transformed into stone, red carpet into white carpet, etc.

To Reproduce
Steps to reproduce the behavior:

1. Load a schematic with BuiltInWorldFileType.SCHEMATIC that contains blocks with custom data (block states / metadata).
2. Start the server and check whether these blocks keep their correct data.

Expected behavior
All blocks, including their block data (block states / metadata), should be placed correctly at the right positions.

Server Info (please complete the following information):

• All Limbo plugins versions:
• Limbo API latest version (it happens on "all" versions)

I tried to fix this with Copilot; it correctly patched the issue by editing MCEditSchematicFile and legacyblocks.json. However, I don’t find this solution very clean, as it requires manually adding each ID to the file.