bug: T motion does not allow for selection of duplicate characters

[cedliang]

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Neovim version (nvim -v)

v0.9.1

Operating system/version

MacOS 14.0 beta, Arch, Windows 11

Describe the bug

Using the T motion on repeated characters fails to allow for the navigation to every occurrence.

Steps To Reproduce

1. Create a file with the following:

\\ \\ \\ \\ \\ \\ \\ \\ \\ \\

2. Navigate to the end of line
3. T\

Only the succeeding character of every second \ is accessible.

Expected Behavior

Something more akin to the t motion, which yields

where the preceding character of every \ is accessible.

Repro

-- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({ "git", "clone", "--filter=blob:none", "https://github.com/folke/lazy.nvim.git", lazypath, })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  "folke/tokyonight.nvim",
  { "folke/flash.nvim", opts = {} },
  -- add any other plugins here
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

vim.cmd.colorscheme("tokyonight")
-- add anything else here