Humger deplete much faster when jumping in 1.7.2 and 13w48a compared to 1.6

Video proof by Morilibus comparing 1.6 and 1.7
http://youtu.be/ouum9Z9GlpY
And yes it still affect 13w48a the same way

Some reports of this bug are marked as "work as intended"
This change has never been written in the changelogs of 1.7, so i'm sorry but something that changed ( for the worst) and it's not referenced in the changelog is a bug for me.
Futhermore this change make survival a lot more anoying, you have to take a lot more time farming food and also... eating !

Exploring is a key feature in 1.7 thanks to the new biomes but for just 1 hour of exploring you have to take at least 2 stacks of steaks with you just because the hunger start to depletes a lot more faster when the saturation is gone, it's even worst in the nether where the hunger can go down in just 10 seconds ( if you run and jump )
and last but not least, hunger can even deplete while standing still if the saturation of the food is gone, so you bassicly die while being afk...

Please consider being honest at least and state if it's a feature of 1.7 or just a bug.