Server GUI throws an exception when trying to use command history

[Jannik44]

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Expected behavior

no error?

Observed/Actual behavior

an exception occurs

Steps/models to reproduce

use newest purpurmc server version, run the gui to activate the cursor, click in the input field and press arrow up

Purpur version

Previous: git-Purpur-2120 (MC: 1.20.4)

• You are running the latest version

Agreements

• [X] I am running the latest version of Purpur available from https://purpurmc.org/downloads.
• [X] I have searched for and ensured there isn't already an open issue regarding this.
• [ ] I ticked all the boxes without actually reading them
• [X] My version of Minecraft is supported by Purpur.

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