bug: Introduced regression with key handling

[smhc]

Did you check docs and existing issues?

• I have read all the lazy docs
• I have searched the existing issues of lazy
• I have searched the exsiting issues of the plugin I have a problem with

Neovim version (nvim -v)

0.8.0

Operating system/version

Linux

Describe the bug

Using a key binding to load plugin results in random register pastes instead of actual key press. See repro.lua.

Reverting this change fixes the issue: e93f50f

Steps To Reproduce

1. see repro.lua

Expected Behavior

Key-binding should load plugin and forward key event normally (7.9.0 behaviour)

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",
    "--single-branch",
    "https://github.com/folke/lazy.nvim.git",
    lazypath,
  })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
vim.keymap.set('n', '<Leader>e', '<Plug>(x-file-explorer)', { silent = true })
local M = {
  "nvim-neo-tree/neo-tree.nvim",
  branch = "v2.x",
  dependencies = {
    "nvim-lua/plenary.nvim",
    "kyazdani42/nvim-web-devicons",
    "MunifTanjim/nui.nvim",
    "plenary.nvim",
    'nvim-web-devicons',
    'nui.nvim',
  },
  keys = {
    '<Plug>(x-file-explorer)',
  },
  config = function()
     vim.keymap.set('n', '<Plug>(x-file-explorer)', '<cmd>Neotree toggle<CR>', {})
  end
}
local plugins = {
    "folke/tokyonight.nvim",
    M
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})
vim.cmd.colorscheme("tokyonight")

[smhc]

Duplicate of #307 that was raised while raising this issue.

[smhc]

There is this comment on nvim_input() API that is likely related:

   Note:
        |keycodes| like <CR> are translated, so "<" is special. To input a
        literal "<", send <LT>.

[folke]

Should be fixed now. Do make sure you set your mapleader before loading lazy