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bug#57066: 29.0.50; Complex emoji overlaps with text


From: Eli Zaretskii
Subject: bug#57066: 29.0.50; Complex emoji overlaps with text
Date: Tue, 09 Aug 2022 20:31:58 +0300

> From: Protesilaos Stavrou <info@protesilaos.com>
> Cc: 57066@debbugs.gnu.org
> Date: Tue, 09 Aug 2022 20:17:12 +0300
> 
> While the form (encode-coding-char char coding charset) returns:
> 
>     Result: #("😀" 0 1 (charset unicode))
> 
> Then the error is in (encoded-string-description encoded coding):
> 
>     Assertion failed: ((not (multibyte-string-p str)) nil)
> 
> The reason is that (coding buffer-file-coding-system) returns nil.

Why is buffer-file-coding-system nil?  Isn't that in *scratch*?





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