Chest open glitch

When you look at the chest and you look away, you can still access it if you right click in half a second (or less).

What I expected to happen was:
To place a block.

What actually happend was:
I oppened the chest.

Steps to reproduce:

• 1. Place the chest.
• 2. Look at it.
• 3. Look away and in less then half a sec right click.

I don't know if this is lagg or it is glitch but i tryed 20 times and 15 times it happened. And i just tryed and it also works if you do the same but try to place the block.