Steps to reproduce
Toggle Reduced Debug Info either in Multiplayer Settings or via the gamerule
Have a look at the top part (which goes from 'Minecraft <versionname>' down to 'MultiplayerChunkCache'
Compare it between 14w30a (or later) and pre-14w30a, you will notice it is the same despite the information not intentionally being hidden as it does not change gameplay
I'm sorry, what is the bug here?