[csswg-drafts] Issue: [css-text-3] Segment Break Transformation Rules for East Asian Width property of A marked as i18n-tracking

r12a has just labeled an issue for https://github.com/w3c/csswg-drafts
 as "i18n-tracking":

== [css-text-3]  Segment Break Transformation Rules for East Asian 
Width property of A ==
https://drafts.csswg.org/css-text-3/#line-break-transform

> Otherwise, if the East Asian Width property [UAX11] of both the 
character before and after the line feed is F, W, or H (not A), and 
neither side is Hangul, then the segment break is removed.

As this rule, common use cases of quotation marks in Chinese

```
简体中文的
“引号”
两边不应该有空格。
```

will have unexpected spaces, because quotation marks are _A_.

Ideally, we should consider the language information of the context. 
If the context is East Asian language, _A_ should be treat as _W_. 
Even in the unknown language context, if any side of the line feed is 
_A_ and other side is _F_, _W_ or _H_, the segment break should also 
be removed.


See https://github.com/w3c/csswg-drafts/issues/337