title: In vim, why my autocmd setfiletype command not working?
body: <p>In my .vimrc I add this,</p>
  
  <pre><code>autocmd BufNewFile,BufRead *.markdown setfiletype octopress
  </code></pre>
  
  <p>But it seems not working because after I open a xxx.markdown file and input the command <code>setfiletype octopress</code> everything works fine.</p>
  
  <p>Here is my intact .vimrc</p>
  
  <pre><code>set nocompatible
  syntax on
  filetype off
  colorscheme desert
  set nu
  set mouse=a
  set rtp+=~/.vim/bundle/vundle/
  call vundle#rc()
  Bundle 'gmarik/vundle'
  filetype plugin indent on    
  
  Bundle 'vim-octopress'
  autocmd FileType markdown setfiletype octopress
  </code></pre>
  
  <p>Hope someone can help me and tell me how to debug this thing...</p>