Describe the bug
Modern Chair corner has (maybe) a wrong model

Crash report
N/A

To Reproduce
If applicable, the steps to reproduce the behavior:

1. Create a corner from Modern Chairs
2. See error

Screenshots

Please complete the following information:

• Minecraft Version: 1.12.2
• Mod Version: 5.15.0

Woops, Modern Couch isn't actually suppose to have a corner version. Will fix soon

Fixed in de6577c