Bug#661720: vim-gtk: netrw :E breaks with split buffers

[Michael Leuchtenburg]

Package: vim-gtk
Version: 2:7.3.429-2
Severity: normal
Tags: upstream

Dear Maintainer,

If I use split windows and netrw's :E file browser, it sometimes sets
buffers containing files as readonly nonmodifiable and changes which
window is focused. 

To reproduce:
$ vim -u NORC -U NORC -N
C-w v
:E
<scroll to a file (e.g. .vimrc), open it by pressing Enter>
C-w w
:E

At this point, the focus changes to the first window (containing the
opened file), that buffer is set readonly nonmodifiable, and the buffer
is scrolled to the end. The netrw buffer *does* open as normal.

This also triggers sometimes when I change what directory netrw is
visiting. I haven't figured out exactly the rules for what triggers the
problem, but the above is an easy way to trigger the bug.

-- Package-specific info:

--- real paths of main Vim binaries ---
/usr/bin/vi is /usr/bin/vim.gtk
/usr/bin/vim is /usr/bin/vim.gtk
/usr/bin/gvim is /usr/bin/vim.gtk

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages vim-gtk depends on:
ii  libacl1             2.2.51-5
ii  libc6               2.13-27
ii  libgdk-pixbuf2.0-0  2.24.1-1
ii  libglib2.0-0        2.30.2-6
ii  libgpm2             1.20.4-4
ii  libgtk2.0-0         2.24.10-1
ii  libice6             2:1.0.7-2
ii  liblua5.1-0         5.1.4-12
ii  libpango1.0-0       1.29.4-2
ii  libperl5.14         5.14.2-7
ii  libpython2.7        2.7.2-13
ii  libruby1.8          1.8.7.352-2
ii  libselinux1         2.1.0-4.1
ii  libsm6              2:1.2.0-2
ii  libtinfo5           5.9-4
ii  libx11-6            2:1.4.4-4
ii  libxt6              1:1.1.1-2
ii  tcl8.5              8.5.11-1
ii  vim-common          2:7.3.429-2
ii  vim-gui-common      2:7.3.429-2
ii  vim-runtime         2:7.3.429-2

vim-gtk recommends no packages.

Versions of packages vim-gtk suggests:
pn  cscope            15.7a-3.5
pn  gnome-icon-theme  3.2.1.2-1
pn  ttf-dejavu        2.33-2
pn  vim-doc           <none>

-- no debconf information