The field was recently introduced in T341142 (still not fully applied to production DBs). However, we determined that the field isn't really necessary, because the data it stores can always be derived from other fields, and therefore it would only unnecessarily make the table larger. It would also have to be special-cased in the code due to its special meaning, which is one more reason in favour of removing it.

Checklist

• Add default value again in beta (prod still has it)
• Remove all mentions to the field from the code
• Drop the column in the code
• Drop the column in beta
• Drop the column in prod (T342966)