bug: error regarding "ModeChanged" autocommands

[synic]

Describe the bug

Changing window focus between avante and other buffers causes the error below. Once it gets in this state, you have to close avante completely and re-open it, because you'll get the error for every key you press.

Error detected while processing ModeChanged Autocommands for "*:i":
Error executing lua callback: deserialize error: missing field `ask`
stack traceback:
        [C]: in function 'render_mode'
        ...ic/.local/share/nvim/lazy/avante.nvim/lua/avante/llm.lua:58: in function 'generate_prompts'
        ...ic/.local/share/nvim/lazy/avante.nvim/lua/avante/llm.lua:120: in function 'calculate_tokens'
        ...local/share/nvim/lazy/avante.nvim/lua/avante/sidebar.lua:1856: in function 'show_hint'
        ...local/share/nvim/lazy/avante.nvim/lua/avante/sidebar.lua:1911: in function <...local/share/nvim/lazy/avante.nvim/lua/avante/sidebar.lua:1909>

To reproduce

Ok, to reproduce this, you have focus in the ask window. Then, exit insert mode, type <c-w>h to move your cursor to the window on the left. Then type <c-w>l, and <c-w>j (may need a few times to get down to the ask window).

When the cursor gets back to the ask window, you will get this error.

It doesn't matter how you get back to the window, just moving the cursor to a non-avante window and back to the ask window will cause breakage.

Expected behavior

This should not happen.

Installation method

Use lazy.nvim:

{
  "yetone/avante.nvim",
  event = "VeryLazy",
  lazy = false,
  version = false, -- set this if you want to always pull the latest change
  opts = {
    -- add any opts here
  },
  -- if you want to build from source then do `make BUILD_FROM_SOURCE=true`
  build = "make",
  -- build = "powershell -ExecutionPolicy Bypass -File Build.ps1 -BuildFromSource false" -- for windows
  dependencies = {
    "nvim-treesitter/nvim-treesitter",
    "stevearc/dressing.nvim",
    "nvim-lua/plenary.nvim",
    "MunifTanjim/nui.nvim",
  },
}

Environment

:version
NVIM v0.10.2
Build type: Release
LuaJIT 2.1.1732813678
Run ":verbose version" for more info

On macos 15.2, and I am using Claude

Repro

No response

[Jinbiao-Lin]

I have the issue too. By the way, I'm using tmux. When switching back from another tmux session, the error will pop up. I need to press enter multiple Times.