Use false/true mixin in migration from !3640

@stanhu My only guess is execute or pg, or Postgres itself is smart enough to handle true, but I'm guessing MySQL isn't? ¯\_(ツ)_/¯

We're not actually using true_value / false_value in this file yet.

Reassigned to @stanhu

Added 1 commit:

• 13c00262 - Use false/true mixin in migration from !3640 (merged)

@rspeicher Duh, of course. Thanks again. :)

Title changed from Include missing mixin from !3640 (merged) to Use false/true mixin in migration from !3640 (merged)

Reassigned to @rspeicher

Status changed to merged

mentioned in commit 78192747