Este problema está agora resolvido. Foi resolvido quando eu criei o vim a partir de 7.4a Beta. Estou postando o .vimrc, que não tem a opção fileformats nele.
Eu corri a configuração com estes parâmetros:
/configure --enable-gui=auto --disable-gtktest
Aqui está o .vimrc:
nnoremap <F2> :set nonumber!<CR>:set foldcolumn=0<CR>
filetype plugin indent on
autocmd!
autocmd FileType python set complete+=k~/.vim/syntax/python.vim isk+=.,(
map <buffer> <S-e> :w<CR>:!/usr/bin/env python % <CR>
set encoding=utf8
set paste
set expandtab
set textwidth=0
set tabstop=4
set softtabstop=4
set shiftwidth=4
set autoindent
set backspace=indent,eol
set incsearch
set ignorecase
set smartcase
set ruler
set wildmenu
set commentstring=\ #\ %s
set clipboard+=unnamed
set wm=8
syn on
set nocompatible
" tab navigation adapted from vim tip 1221
nmap th :tabprev<cr>
nmap tl :tabnext<cr>
nmap tn :tabnew<cr>
nmap tc :tabclose<cr>
set statusline=%F%m%r%h%w\ [FORMAT=%{&ff}]\ [TYPE=%Y]\ [ASCII=\%03.3b]\ [HEX=\%02.2B]\ [POS=%04l,%04v][%p%%]\ [LEN=%L]
set laststatus=2
" Uncomment the following to have Vim jump to the last position when
" reopening a file
if has("autocmd")
au BufReadPost * if line("'\"") > 0 && line("'\"") <= line("$")
\| exe "normal g'\"" | endif
endif
autocmd BufNewFile * silent! 0r $VIMHOME/templates/%:e.tpl
augroup filetypedetect
autocmd BufRead,BufNewFile *.wiki setfiletype Wikipedia
autocmd BufRead,BufNewFile *.wikipedia.org* setfiletype Wikipedia
augroup END