Find-file problem when connecting from Windows box with plink

[Jyrki Jaakkola]

Hello!

I'm using tramp 2.1.8 and Emacs 21.3.1 (although I have tested this also 
on latest ntemacs [ntemacs22-bin-20070102]). I'm running emacs on WinXP 
box. I'm using plink (from Putty 0.59) to connect to my linux box. If I 
do C-x C-f /plink:address@hidden:/home/foo/existing-file from for 
example slime repl the file opens without a hitch. When I use find-file 
to provide file list on specific folder and then try to select a file I 
get an error "Wrong type argument: stringp, nil". Also if I try to use 
C-x C-f on same buffer I get the same error. Here is the backtrace for 
the situation:

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  intern(nil [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0])
  vc-file-clearprops(nil)
  vc-file-not-found-hook()
  run-hook-with-args-until-success(vc-file-not-found-hook)
  byte-code("unreadable" [filename buf error file-exists-p 
file-readable-p kill-buffer signal file-error "File is not readable" 
run-hook-with-args-until-success find-file-not-found-hooks t] 4)
  find-file-noselect-1(#<buffer file.lisp> 
"/plink:address@hidden:/home/foo/file.lisp" nil nil 
"/plink:address@hidden:/home/foo/file.lisp" (149209 (-1 0)))
  find-file-noselect("/plink:address@hidden:/home/foo/file.lisp" nil 
nil nil)
  find-file("/plink:address@hidden:/home/foo/file.lisp")
  dired-advertised-find-file()
  call-interactively(dired-advertised-find-file)

I have looked to tramp debug output but there doesn't seem to be 
anything out of order but if you need the debug output I can provide 
that. When I tried doing same from a linux box with ssh I could use 
find-file without a problem. As I couldn't test plink on linux box I'm 
not sure how it would behave.

Jyrki Jaakkola