blockshape: terracotta is not applied to block.

Verification builds: 1.2.2 Build 503712
Summary:
blockshape: terracotta is not applied to block.
We used the diamond_ore block as a base, then we applied the blockshape: terracotta.

{ 
	"diamond_ore" : { 
		"blockshape": "terracotta",
		"textures" : "gold_ore",
		"sound": "stone"
	} 
}

Impact:
The block texture does not rotate when placing down in different angles.
Repro Steps:
1)Apply the testpack.mcpack
2)Place down diamond ore in different angles. 2017-09-30_16-55-27.mp4
Observed Results:
Placing down the diamond ore in different angles does not give the effect we have with terracotta blocks
Expected Results:
Placing down the diamond ore in different angles gives the effect we have with terracotta blocks.
Screenshots/Videos attached: Yes