I can confirm and reproduce:
Seeds don't use the correct texture when created when the block that is below a double tallgrass is destroyed.
Please tell me if you don't understand the phrasing, and I'll try to rephrase it.
java_version = 1.7.0_60
os_architecture = amd64
os_name = Windows 7
os_version = 6.1
version = 14w26c
This happens when placing pumpkins on top of transparent blocks (such as ice, glass, leaves, glowstone, farmland, slabs, stairs, fences, and more).
Can reproduce:
Seeds don't use the correct texture when created when the block that is below a double tallgrass is destroyed.
Please tell me if you don't understand the phrasing, and I'll try to rephrase it.
java_version = 1.7.0_60
os_architecture = amd64
os_name = Windows 7
os_version = 6.1
version = 14w26c