[3.14.1] Total War tenet in Autocracy

I took this tenet, which has a description along the lines of 'production bonus to units and +15 xp for new units. But the actual xp effect was that all my current units got +15 xp on the following turn.

I'm guessing it's a bug since it doesn't match the description and seems very powerful.

We haven't touched any of the tenets.
If this is the result then it is most likely a vanilla issue.

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I'd rather fix the description to just say +15 XP all units (new/current). Tenets should be powerful enough that we'd actually want to get them once in a while.