When Right Clicking With Bone Meal On A Sunflower It Makes More Sunflowers

what were you expecting it to do? Technically your bonemealing the seeds (hint hint mojang... don't make yellow dye from sunflowers... make sunflower seeds)

I didn't think about that and yes MOJANG no yellow dye we want seeds

Working as intended:
"When bone meal is used on the sunflower, a second sunflower is dropped."