Do not generate CTA in new Rule Action if all Identifiers are identical

I have a Rule that creates CTAs, but I'm updating the Bionic Query to, well, make it more complex.

As a results, I need to change the Action that creates CTAs from being based on one Bionic Task to a different Bionic Task. I can't change the source Task for an existing Action, so I'm replicating all the configuration into a new Action on the same Rule.

The new Action is creating CTAs with an identical Title, Type, Reason, and Priority. (And the "Use in identifiers?" checkbox for the Title is checked, for both the new and old Actions.)

However, when I test the Rule, the Excel output tells me:

• For the old Action, all the CTA Created records are marked as "Existing CTA": https://cl.ly/171X360n2541
• For the new, identically-configured Action, all the CTA Created records are marked as "New CTA": https://cl.ly/2l250l2k423n

So, I wanted to confirm if this is the expected behavior, which I'm hoping for:
If two Actions in one Rule (or even Actions in separate Rules) create CTAs with identical "Identifiers", then only [i]one CTA will end up being created.

(This would mean that the "New CTA" column in the Rule results Excel file is a bug, or at least confusing behavior, which we refer to internally as featurebugs ;-)  )