JetBrains IDEs: Copilot Chat: shift+enter appends tremendous amount of lines

[zzJinux]

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Bug

Body

How to reproduce

1. Open the Copilot Chat tool window.
2. Put the cursor on the prompt box and type "shift+enter"

Expected

One empty line is appended.

Got

401 empty lines (!) are appended

Environment

GoLand 2023.3.2
Build #GO-233.13135.104, built on December 20, 2023
Runtime version: 17.0.9+7-b1087.9 aarch64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
macOS 13.6.3
GC: G1 Young Generation, G1 Old Generation
Memory: 4096M
Cores: 10
Metal Rendering is ON

GitHub Copilot 1.4.6.4092

[zzJinux]

Oh, there's already one: https://github.com/orgs/community/discussions/80395