bug#30544: 26.0.91; ansi-term duplicates 2 line zsh prompts any time windows change (maybe other times)

[Noam Postavsky]

Aaron Jensen <aaronjensen@gmail.com> writes:

> On Wed, Mar 14, 2018 at 4:49 PM, Noam Postavsky <npostavs@gmail.com> wrote:
>> Odd.  I have urxvt here, and it seems to be able to resize both width
>> and height without getting any duplicated prompts.  Could it be that zsh
>> always repaints the prompt on a resize, but term.el (and iTerm for width
>> adjustments) don't put point where zsh is expecting after a resize?
>
> Just to be clear, you're seeing that w/ a two line prompt? This is
> really only an issue w/ a two line prompt for me.

Yes, I did PROMPT=$'one\ntwo' (by the way, I found I had to remove
'prompt adam1' from my .zshrc (the default setup puts it in), otherwise
setting PROMPT has no effect).  I can reproduce the problem in term.el,
but urxvt doesn't have any problems no matter how I resize.