sftp access method fails on Emacs master

[Stephen Berman]

For some time I have been unable to access a remote directory via sftp
using Tramp 2.4.2-pre from the Emacs master branch, while with emacs-26
(Tramp 2.3.5.26.2) it works fine.  I think this started in February, and
suspect these changes:

commit 0a6c4479cff17b487580abe3a7ee202e71be25d2
Author: Michael Albinus <address@hidden>
Date:   Tue Feb 19 14:00:17 2019 +0100

    Implement access-file in Tramp

I've attached two traces with tramp-verbose set to 6, one from emacs-26
showing a successful connection (starting at line 476) and one from
master failing with "File is missing: Reading directory: No such file or
directory" (line 475).  If that's not enough to find the problem, I'll
be happy to provide more information.

Here's my master branch config info (same for emacs-26 except for repo):

In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)
 of 2019-03-30 built on rosalinde
Repository revision: b619777dd67e271d639c6fb1d031650af8fd79e6
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12001000
System Description: 8.3

Configured using:
 'configure 'CFLAGS=-Og -g3''

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GSETTINGS GLIB NOTIFY
INOTIFY ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM THREADS PDUMPER LCMS2 GMP

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Steve Berman

emacs-26
Description: Binary data

emacs-master
Description: Binary data