I have seen this once before. It was on a selfed garlic strom in my winter 2 diary. It's unstable genetics, but if the plant yields well, no loss. My experience was 2 really shitty plants, but it was a selfed plant, so kinda expected some genetic depression.
the buds turned out fine on one, but the yield on both was pitiful. hope your experience differs on that and that it is a non-issue.
i had a bud coming out of a petiole, too, lol. not just a couple pistils at base of leaf, but splitting a petiole open and sprouting from it mid-length, lol. it did that on the stems in unusual places too. the scrawny plant had shittier buds, but one of t hem was okay... still incredibly light relative to size of plant and time invested, though.