The bug

When the clock changes from 11:59 PM December 23 to 12:00 AM December 24, chest items immediately update to get the Christmas gift wrap texture. However, blocks in the world don't update; they still have the old texture, and continue to do so until the resource pack is reloaded (e.g. by relaunching the game).

Of course, this was caused by the further data driving of item models, decoupling the render path that makes that decision for items, while preserving the hardcoded check that makes it for blocks.

How to reproduce

1. Place some chests and hold a chest
2. Set your system time to 11:59 PM December 23
3. Wait one minute

Expected behavior
All chests should update the minute the clock strikes midnight

Observed behavior
Items switch over, but blocks don't. In previous versions, neither did.