Enchanting does not consume correct levels in survival

Expected Outcome: Enchant an item with a level 30 enchant in survival and 30 levels get taken from the player.

Actual outcome: Enchant an item with a level 30 enchant in survival and 3 levels get taken from the player.

Anvils appear to take appropriate levels.
See the end of http://youtu.be/EsHf9usSs2Y