Color Emoji produces ghosting effect when scrolling through the window

[chansey97]

Following the wiki tips to config Color Emoji.

It can display emojis, but produces ghosting effect when scrolling through the window.

Please refer to the screen recording below.

mintty-emoji.mp4

P.s. After select all content and cancel, the rendering will return to normal. It does not seem that the screen refresh properly.

Version: mintty 3.7.0 (x86_64-pc-msys)

Thanks.

[mintty]

Please upload your test file. Also which font, font size, and emoji style do you run?

[chansey97]

Please upload your test file.

unicode.txt

Also which font, font size, and emoji style do you run?

I use Emojis=zoom, but it can also be reproduced by other emoji styles , e.g. twitter and google.

.minttyrc

Term=xterm
StatusLine=yes
Locale=en_US
Charset=UTF-8

ShowHiddenFonts=yes

Font=Source Code Pro
FontWeight=400
FontHeight=12

Charwidth=unicode
Emojis=zoom
EmojiPlacement=full

It can be reproduced on both windows 7 and 10.

P.s. Why I mentioned about Windows 7, even though it is no longer officially supported? Because AFAIK mintty is the only Terminal emulator that supports Color Emoji on Windows 7. So I hope to fix it.

[mintty]

Tweaked handling of setting EmojiPlacement=full.
Also enabled emoji space expansion for numbers and flag letters, even without that setting.