Application breaks when resizing after #18704

[psinha40898]

What happened?

Commit 0080589 (#18704) is resulting in severe rendering issues for my vanilla WSL Setup.

rendering.mov

• I'm using a vanilla WSL setup. I do not know what shpool is tbh, so I would say I'm not using it.
• Resizing a pending message flickers the "Waiting for auth" dialog, and eats the entire message history
• This occurs whether alternate buffer mode is enabled or not.
• It is definitely this commit

What did you expect to happen?

Resize the terminal at any time without breaking the application

Client information

Client Information

Run gemini to enter the interactive CLI, then run the /about command.

> /about
#  CLI Version                        0.30.0-nightly.20260210.a2174751d                                │
│ Git Commit                         008058993                                                        │
│ Model                              gemini-3-flash-preview                                           │
│ Sandbox                            no sandbox                                                       │
│ OS                                 linux                                                            │
│ Auth Method                        Logged in with Google (pyushsinha20@gmail.com)                   │
│ Tier                               Gemini Code Assist for individuals  

Login information

oauth

Anything else we need to know?

WSL
Default windows 11 powershell that uses wsl when installing wsl through ms marketplace
Entirely default/vanilla setup

[psinha40898]

This was fixed in #18958 and is now fixed on the nightly release,