Cursor jumping after typing

### Neovim version (nvim -v) NVIM v0.12.0-dev-2727+gad4bc2d90c ### Operating system/version MacOS 26.0 ### Output of :checkhealth haskell-tools ```console ============================================================================== haskell-tools: 4 ⚠️ Checking for Lua dependencies ~ - ⚠️ WARNING telescope not installed. Required for hoogle search modes "telescope-local" and "telescope-web" [nvim-telescope/telescope.nvim](https://github.com/nvim-telescope/telescope.nvim) Checking external dependencies ~ - ✅ OK haskell-language-server: found haskell-language-server version: 2.13.0.0 (GHC: 9.10.3) (PATH: /Users/andri/.ghcup/hls/2.13.0.0/lib/haskell-language-server-2.13.0.0/bin/haskell-language-server-wrapper) - ✅ OK hoogle: found Hoogle 5.0.19.0, https://hoogle.haskell.org/ - ⚠️ WARNING fast-tags: not found. Install [fast-tags](https://hackage.haskell.org/package/fast-tags) for extended capabilities. Optional, for generating tags as a `tagfunc` fallback. - ✅ OK curl: found curl 8.7.1 (x86_64-apple-darwin25.0) libcurl/8.7.1 (SecureTransport) LibreSSL/3.3.6 zlib/1.2.12 nghttp2/1.66.0 - ⚠️ WARNING haskell-debug-adapter: not found. Install [haskell-debug-adapter](https://github.com/phoityne/haskell-debug-adapter) for extended capabilities. Optional, for `dap` support. - ⚠️ WARNING ghci-dap: not found. Install [ghci-dap](https://github.com/phoityne/ghci-dap) for extended capabilities. Optional, for `dap` support. Checking config ~ - ✅ OK No errors found in config. Checking for conflicting plugins ~ - ✅ OK No conflicting plugins detected. ``` ### How to reproduce the issue - `nvim test.hs -u repro.lua` (where repro.lua is unmodified minimal config) - add some text like `add a b = a + b` - Type `oa`, wait a bit, then type `b` - See that you have `ba` instead of `ab` (cursor jumped back to be before the `a` after some time ### Expected behaviour cursor should stay where it was ### Actual behaviour it doesn't ### Log files ```console ``` ### The minimal config used to reproduce this issue. ```Lua vim.env.LAZY_STDPATH = ".repro" ---@diagnostic disable-next-line: param-type-mismatch load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))() require("lazy.minit").repro({ spec = { { "mrcjkb/haskell-tools.nvim", version = "^7", init = function() -- Configure haskell-tools.nvim here vim.g.haskell_tools = {} end, dependencies = { -- Uncomment or add any optional dependencies needed to reproduce the issue -- 'nvim-telescope/telescope.nvim', -- 'akinsho/toggleterm.nvim', }, lazy = false, }, }, }) -- do anything else you need to do to reproduce the issue ```