Try to restore quick-fix windows...

The code seems simple enough and in fact works most of the time. The
problem is that it doesn't always work. I've added it anyway because
of its added value to my (and presumably others) work flow. If and when
I find a more reliable way to restore quick-fix windows I can always
switch to that.

autoload.vim

@@ -1,6 +1,6 @@
 " Vim script
 " Author: Peter Odding
-" Last Change: December 20, 2010
+" Last Change: December 25, 2010
 " URL: http://peterodding.com/code/vim/session/
 
 let s:script = expand('<sfile>:p:~')
@@ -113,6 +113,7 @@ function! session#save_special_windows(session)
   if exists('g:loaded_nerd_tree') && match(a:session, '\<NERD_tree_\d\+$') >= 0
           \ || exists(':Project') == 2 && exists('g:proj_running')
           \ || exists('g:loaded_netrw') && match(a:session, '^file sftp://')
+          \ || !empty(getqflist())
     let tabpage = tabpagenr()
     let window = winnr()
     try
@@ -147,17 +148,24 @@ function! s:check_special_window(session)
   elseif &filetype == 'netrw'
     let command = 'edit'
     let argument = bufname('%')
+  elseif &buftype == 'quickfix'
+    let command = 'cwindow'
+    let argument = ''
   endif
   if exists('command')
     call s:jump_to_window(a:session, tabpagenr(), winnr())
     if command != 'edit'
       call add(a:session, 'bwipeout')
     endif
-    let argument = fnamemodify(argument, ':~')
-    if &sessionoptions =~ '\<slash\>'
-      let argument = substitute(argument, '\', '/', 'g')
+    if argument == ''
+      call add(a:session, command)
+    else
+      let argument = fnamemodify(argument, ':~')
+      if &sessionoptions =~ '\<slash\>'
+        let argument = substitute(argument, '\', '/', 'g')
+      endif
+      call add(a:session, command . ' ' . fnameescape(argument))
     endif
-    call add(a:session, command . ' ' . fnameescape(argument))
     return 1
   endif
 endfunction

session.vim

@@ -1,8 +1,8 @@
 " Vim script
 " Author: Peter Odding
-" Last Change: December 20, 2010
+" Last Change: December 25, 2010
 " URL: http://peterodding.com/code/vim/session/
-" Version: 1.3.5
+" Version: 1.3.6
 
 " Support for automatic update using the GLVS plug-in.
 " GetLatestVimScripts: 3150 1 :AutoInstall: session.zip