Vim Display Corruption

I consistently see text display corruption when
editing a file on a remote Linux system with vim.

I run an xterm window on macOS and ssh into a
remote Linux machine. The edit session is
displayed back to an XQuartz server running on
the same macOS.

I have only seen this problem when displaying
back to an XQuartz server running on macOS.

I have not seen the problem when displaying back
to an X11 server running on various Linux
systems.

This problem occurs with newer versions of vim,
but not older versions.

Inserting lines causes the INSERT message to be
displayed in the command line, but it is not
cleared after hitting the ESC key.

Inserting text also causes extraneous lines of
text to be added to the body of the original
text, corrupting the edit display.

I suspect that I am seeing the same vim behavior
as was reported in this incident:

https://groups.google.com/forum/#!topic/vim_dev/GR9YG8TZy6o

A work-around is to add this statement to the
.vimrc file:

set ambiwidth=single

I do not know if this is a bug in vim, XQuartz,
or both. So I am asking for vim help here and
XQuartz help in another forum.

Here is a summary of editing a file using two
versions of vim, each with and without, the
ambiwidth work-around.


New Vim
-------
VIM - Vi IMproved 7.4 (2013 Aug 10)
Included patches: 1-207, 209-326
Compiled by 'http://www.opensuse.org/'

Works with: set ambiwidth=single
Fails without: set ambiwidth=single


Old Vim
-------
VIM - Vi IMproved 7.2 (2008 Aug 9, compiled Feb 4 2012 09:50:29)
Included patches: 1-108
Compiled by 'http://www.opensuse.org/'

Works with: set ambiwidth=single
Works without: set ambiwidth=single

--

Dick Riegner




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