remaining data when signing book with 1.7.10 client

[creeper123123321]

Describe the bug, provide any errors

[12:11:36] [Server thread/INFO]: creeper123123321 lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.io.IOException: Packet 0/11 (mq) was larger than I expected, found 185 bytes extra whilst reading packet 11

How can we reproduce it?
connect to 1.13.2+ server with 1.7 client

Expected behaviour
Shouldn't kick

ViaVersion Dump:
https://dump.viaversion.com/3df788a0535a4e1d471b29513b8f9d104a2c8729ddfe1f8a52c98a70d9badc6f

Additional server info
1.13.2 server

Checklist (mark with [X] to check)

• I have included a ViaVersion dump
• If applicable, I have included a paste (not a screenshot) of the error
• I have tried a build from https://ci.viaversion.com/ and the issue still persists
• I have looked at https://www.spigotmc.org/resources/viarewind-legacy-support.52924/ and it does not offer a fix for my problem

IMPORTANT: Follow the Checklist or we can't reproduce your issue and your issue will be closed

[Barvalg]