Switching to a block and placing it at the same time creates a ghost block

I was mining with a heavily used stone pickaxe. I switched from my pickaxe to torch and tapped the ground as if I was placing something at the same time. The result was light coming from nowhere. It's like someone placed a light block, but with a torch. More curiously, I kept my torches. I was able to reappear the glitch several times. Good lighting for a survival base, but a bug never-less.

1. To replicate the glitch, place torches in an inventory slot. Make sure you are not holding the torch.

2. Tap like you are going to place a torch and tap like you are equipping the torch at the same time.

3. That's it. That is one of the craziest lighting glitches all time.

(Ps: I am on mobile and this is my first report. Sorry if I am vague)