scrolling through history in cygwin terminal window line gets garbled

[cyg Simple]

On 8/17/2018 9:18 PM, Steven Penny wrote:
> On Fri, 17 Aug 2018 16:36:57, Thomas Wolff wrote:
>> Please test the following:
>> * Set you prompt to some basic string, e.g. PS1=%. Does that change
>> anything?
>> * Mintty 2.7.5 changed the default wraparound behaviour to become
>> compatible with the xterm default. With setting -o OldWrapModes=true,
>> does that change anything?
>> * Can you cross-test this in xterm?
>> * Does it happen in a freshly-started mintty? If it only happens
>> later, which programs did you run in the meantime?
>> * Make a screen log demonstrating a minimal test case, please.
> 
> This bug has bothered me for years, I would love to see it fixed. Here is a
> simple test case:
> 
> Â Â  $ cat ~/.bash_history
> Â Â  echo ABCDEF ABCDEF ABCDEF ABCDEF
> Â Â  echo 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789
> 
> Result:
> 
> Â Â  $ echo ABCDEF ABCDEF ABCDEF ABCDEFÂ Â Â Â Â Â Â  234
> 
> What I tried:
> 
> 1. PS1=%
> 2. "TERM" with no "am" or "bw"
> 3. "TERM" with both "am" and "bw"
> 4. "TERM" with "am" only (couldnt find one with "bw" only)
> 
> If you have a custom terminal that this works with - provide the "infocmp"
> output and I will try it. Note that I am not using Mintty, I am just using
> sh.exe and conhost.exe, so it seems that mintty is not the culprit but
> perhaps
> Cygwin DLL or Readline.
> 

Sorry, I can't duplicate this.  I even tried with conhost and bash -il
in the window and just don't see an issue. My TERM value is xterm and
the data comes from the file /usr/share/terminfo/78/xterm.

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cyg Simple

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