variable only cases in select is omitted

[taozhou-glean]

Describe the bug

pure variable variant is omitted from the extracted message, resulting in invalid ICU format

select(variant, {
    other: localeDateAndTime,
    today: `Today at ${localeTime}`,
    tomorrow: `Tomorrow at ${localeTime}`,
    yesterday: `Yesterday at ${localeTime}`,
  })

right now, other is omitted from the extracted message

 {variant, select, today {Today at {localeTime}} tomorrow {Tomorrow at {localeTime}} yesterday {Yesterday at {localeTime}}

and according to https://format-message.github.io/icu-message-format-for-translators/editor.html, this format is invalid as missing other there.

Expected behavior

expect other is included

{variant, select, other {{localeDateAndTime}} today {Today at {localeTime}} tomorrow {Tomorrow at {localeTime}} yesterday {Yesterday at {localeTime}}

Additional context

not sure if this is v4 only, only tested on v4 tho