Yes, I saw some talk and a screenshot somewhere that showed that apparently in its current state, Gemini can (or could) be asked to output the prompt enhancements it used along with the generated images.

The screenshot showed someone asking for images of fruit, and the enhanced prompt included "racially diverse groups of people". Now if they're inserting something like that even for images containing no people at, it stands to reason that this is just a default enhancement they ALWAYS apply, no matter the prompt, which would explain the racially diverse Nazis (and all the other brouhahahas we've seen from them).