Fails to write to a file which expand() fails to expand

[blueyed]

I just had a problem where expand() in SudoEdit#SudoDo would fail (return an empty string).

SudoWrite 1 would fail with "Cannot write file. Please enter filename for writing!".

The directory (/srv/example.com/shared) contains a symlink:

drwxr-xr-x 1 user root     310 Dec 12 22:37 /srv
lrwxrwxrwx 1 root root      28 Jul 26 16:38 /srv/example.com -> /home/www-data/example.com
drwxrwxr-x 1 user www-data 120 Nov 25 22:11 /srv/example.com/shared

[chrisbra]

Hm,
what kind of file is that? What string was put into the expand() function. This might actually be a bug in Vim, that it can't expand a given filename. But the patch looks good, so I'll include it.