Water/lava held by endermen no longer render even though they used to

In previous versions (up to 14w21b), endermen holding water or lava would correctly display the water or lava block in their hands, like with any other block. However, this broke in 14w25a and has remained as such since; their arms will extend out as expected, however there is absolutely nothing visible there.

To reproduce:

• Load up 14w21b and run /summon Enderman ~ ~ ~ {carried:8}

• Load up the latest release and run /summon minecraft:enderman ~ ~ ~ {carriedBlockState:{Name:"minecraft:water"}}

Expected results: the enderman is holding water, and therefore you should see an enderman holding water

Actual results: 14w21b is correct, but anything after that is not - the enderman is holding water, but you see an enderman holding nothing