The `word-break: auto-phrase` feature flag seems to turn on that mode in ICU even when it's not supposed to. See http://wpt.live/css/css-text/word-break/auto-phrase/word-break-auto-phrase-009.html which should render like http://wpt.live/css/css-text/word-break/auto-phrase/reference/word-break-auto-phrase-009-ref.html
<rdar://problem/128646759>