Why are the account approval emails not being sent the requestor's language?
The message appears to be the 'createaccount-text' from the wiki/languages/i18n json file as issued from the wiki/includes/auth/TemporaryPasswordPrimaryAuthenticationProvider.php
line 445 has
$userLanguage = $user->getOption( 'language' );
even though we are using the ConfirmAccount extensions
The message is being issued in English which is the wiki language, instead of the language used from the SelectorLanguage extension to request the account.