The following tests appear to have started failing after https://trac.webkit.org/changeset/273851/webkit landed: fast/text/international/system-language/han-quotes.html fast/text/international/system-language/jp-circled.html fast/text/international/system-language/navigator-language/navigator-language-en-GB.html fast/text/international/system-language/navigator-language/navigator-language-es-419.html fast/text/international/system-language/navigator-language/navigator-language-es-ES.html fast/text/international/system-language/navigator-language/navigator-language-es-MX.html fast/text/international/system-language/navigator-language/navigator-language-es.html fast/text/international/system-language/navigator-language/navigator-language-fr-CA.html fast/text/international/system-language/navigator-language/navigator-language-fr.html fast/text/international/system-language/navigator-language/navigator-language-hi.html fast/text/international/system-language/navigator-language/navigator-language-ja.html fast/text/international/system-language/navigator-language/navigator-language-pt-BR.html fast/text/international/system-language/navigator-language/navigator-language-pt-PT.html fast/text/international/system-language/navigator-language/navigator-language-ru.html fast/text/international/system-language/navigator-language/navigator-language-zh-HK.html fast/text/international/system-language/navigator-language/navigator-language-zh-Hans.html fast/text/international/system-language/navigator-language/navigator-language-zh-Hant-HK.html fast/text/international/system-language/navigator-language/navigator-language-zh-Hant.html fast/text/international/system-language/navigator-language/navigator-language-zh-TW.html https://build.webkit.org/results/Apple-BigSur-Release-WK2-Tests/r273852%20(674)/results.html
<rdar://problem/75012370>
Reverted change that caused this in <https://commits.webkit.org/r273867>.