Game pause bug

If you right click on the minecraft window-title-bar-thing, it of course pops up some box with options and that to close the window and that. But the thing is, if you right click the window-title-bar-thing, it pauses the game, it doesn't go to the pause screen or anything, it pauses, I even tried with a friend on the server mc.hypixel.net and he said that i was hanging still in the air when i right clickt the windows-title-bar-thing. This bug could be a big issue because it could make people think that you are using cheats/hacks to fly and you could get false-banned.

Here is some proof about it: https://youtu.be/_fslAbgv9kI