netrw always re-trigger FileType on enters file event loaded buffer #20980

vim9script

packadd netrw

augroup Test
        autocmd!
        autocmd VimEnter * call Test()
augroup END

def Test()
        set filetype=vim
        b:match_skip = 10
        echo 'done'
enddef

:Explore<CR>

...
  " Moved the filetype detect here from NetrwGetFile() because remote files
  " were having their filetype detect-generated settings overwritten by
  " NetrwOptionRestore.
  if &ft != "netrw"
    filetype detect
  endif
...

def LoadFTPlugin()
  if exists("b:undo_ftplugin")
    # We assume b:undo_ftplugin is using legacy script syntax
    legacy exe b:undo_ftplugin
    unlet! b:undo_ftplugin b:did_ftplugin
  endif

  var s = expand("<amatch>")
  if s != ""
    if &cpo =~# "S" && exists("b:did_ftplugin")
      # In compatible mode options are reset to the global values, need to
      # set the local values also when a plugin was already used.
      unlet b:did_ftplugin
    endif

    # When there is a dot it is used to separate filetype names. Thus for
    # "aaa.bbb" load "aaa" and then "bbb".
    for name in split(s, '\.')
      exe 'runtime! ftplugin/' .. name .. '.vim ftplugin/' .. name .. '_*.vim ftplugin/' .. name .. '/*.vim'
    endfor
  endif
enddef