Auto-cleanup or notification of empty conditionals?

Somehow empty conditionals ends up in my rules and I find them by looking for a row of (F)s like (F)(F)(F). Is there a use case for empty conditionals? If not, then why allow them to be created in the first place? Or why doesn't the main rules page show any warning about them?

Could be DB corruption. I've only ever had the issue if I throw a device into a condition and subsequently delete the device without deleting the condition first.

Huh. I thought perhaps I jumped out from the middle of a rule edit. I try to always find and click the done button, even if I was just looking and didn't make any changes. But sometimes the Done button doesn't appear unless I force myself to make an arbitrary change.

That could be it as well.

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