[BLOCKING LIVE CONTENT] Carved pumpkins converted to non carved pumpkins.

Verification builds: Release 853103
Summary: Existing carved pumpkin (items, not existing placed) have all been converted to pumpkins without the face carved on them. This causes issues in backwards compatibility with Infinity Dungeon EX

Repro Steps:
1. Download Infinity Dungeon EX
2. Find a room with a pumpkin, image attached image-2018-04-19-20-52-34-537.png
3. There is a pumpkin in a furnace that is supposed to be a "Life Mask"

Observed Results: The "Life Mask" is now a pumpkin that doesn't have a face on it. In addition it no longer acts like a carved pumpkin. You can't wear it, and if you place it on a snow pile you will NOT get a golem.

Impact: In Infinity Dungeon EX you are expected to find one of these Life Masks and put them on 2 blocks of snow to create a snow golem. This allows you to pass it and access a new area. The pumpkin right now, will place on top of the snow and now it blocks the path instead.

Expected Results: Converted pumpkins should become the carved pumpkin, as that's what they were in prior versions of the world.

Videos attached: No