Client incorrectly tries to place skull on chest

[christopherplaysminecraft]

General Information

Release 4.0.3
Version 1.8.x

Bug Description

When holding a skull and shifting at the same time, right clicking a chest tries to place the block against it, whereas it wouldn't do so with a vanilla 1.8.x client.

hypixel-powder-chest-gauntlet.mp4

Steps to Reproduce

As explained above

Expected Behavior

Not try to place the skull

[FlorianMichael]

In vanilla 1.8, shifting and right clicking a chest with a skull will place the skull against the chest. I believe what happens here in the video is that Hypixel cancels that behaviour/placement as you shouldn't be allowed to place the skull at all (or remove it from your inventory) - So I am not able to reproduce this.

Please try how this behaves with an actual 1.8 client on Hypixel

[christopherplaysminecraft]

Did test it before I made the issue and also just now, with a vanilla 1.8.9 client the head doesn't appear on those "Treasure Chests" on the Crystal Hollow island on Skyblock.