This injury to the top stressed out the plant. It thought it was in a live or die situation. So it turned into a hermaphrodite. The plant did it so it can reproduce. Now those seeds will only be hermies or females. This meaning this plant prolly isn't the best choice for a smoke, as for the seeds and less THC concentration. But.. Lesson learned I suppose. If there's other plants around it move them fast, or move that plant. Because it will ruin those plants as well. It will pollinate the flowers. Bringing hell to your grow room.
Hope I helped Doc.