bug#3452: 23.0.94; display

[Chong Yidong]

Richard Stallman <rms@gnu.org> wrote: 

> Visiting the file foo.msg after emacs -Q in a 37-line Linux terminal
> garbles the screen, including the mode line and menu bar.

The problem stems from the character 8237 (#o20055, #x202d),
LEFT-TO-RIGHT OVERRIDE.  For some reason, the composition for this
character screws up line wrapping.

For a simpler test case, see the attached file.  The first line uses
character 8237 and is incorrectly wrapped; the second line uses spaces
and is correctly wrapped.

Handa-san, do you have an idea what the problem might be?  If not, I'll
try to debug.

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