as seen in the snowdrop picture here.
I see what you mean. I can't notice any ''parasite'' image even while scrutating around the flower. Perhaps your screen is better that mine.
Optically, your analyse makes sense as there are 2 surfaces which create reflections inside the glass blade, hence a second image coming by refraction.
The small mirror used here is very thin, so I think that minimizes this issue.
Thanks, Charlie, for pointing it out,
Francis.