You Are Able To Break Things Above Yourself 5 Blocks Away From You While Jumping

When you are mining, you can only break objects 4 1/2 blocks away from you. However, I found a bug where if you need to mine one extra block above you, all you have to do is jump. The game gets confused and doesn't stop the mining function while you are jumping and mining at the same time.

Please fix this if you can.