Habit start date is not enforced

In Android app, created a habit with a start date. But, on the habit card I was able to check off (mark complete) for dates before habit start date.

Furthermore, when when past dates are toggled on and off the total count on the habit card kept going up but the habit details page and insights page showed correct total count. So, habit card count was 0/4 but insights page showed 0/2.