windows-del-symlink-
20071021
The cmd.exe "del" command operates by opening a file and then setting
the file disposition to delete on close followed by closing the file.
When the filename is a symlink, the smb_fid_t scp refers to the final
destination object and not the symlink. In smb_CloseFid() the correct
object would be removed from the directory by name, but the wrong cm_scache_t
would be marked deleted. This would result in subsequent references to
the target file being considered invalid.
Fix it by looking up the cm_scache_t of the symlink prior to performing
the deletion.