letters not visible in window picker with vim._core.ui2 and laststatus=3

### Description When using `require'vim._core.ui2'.enable{}; vim.o.laststatus=3` the letters of the window picker do not get displayed. ### Neovim version ```text NVIM v0.12.2 Build type: RelWithDebInfo LuaJIT 2.1.1774896198 ``` ### Operating system and version 6.19.14-arch1-1 Archlinux ### Windows variant _No response_ ### nvim-tree version latest ### Clean room replication ```lua require'nvim-tree'.setup{actions = {open_file = { window_picker = { enable = true } }}} require'vim._core.ui2'.enable{} vim.o.laststatus=3 ``` ### Steps to reproduce 1. nvim 2. `:vsplit` 3. `:NvimTreeToggle` 4. open a file ### Expected behavior the letters should be visible no matter the laststatus setting even with the new ui. ### Actual behavior Note: this is so weird that it may be an issue of neovim, but I don't know how to find out. with `laststatus=3` the statusline appears as the last line of the window and the cmdline appears above it. The statusline is completely blank instead of containing the letters hinting at which window is which. <img width="825" height="73" alt="Image" src="https://github.com/user-attachments/assets/7f53afff-382c-4025-aa02-d3c0115704c7" /> The issue is only in the bottom statusline - top window of `hsplit` shows the letter correctly. I've managed to get the statusline bugged once also with `laststatus=1` so that it was swapped with the cmdline, so it likely is sth with neovim. But I don't know what function nvimtree uses to pick the windows, so I don't know how to reproduce it to report it in nvim