Lingering and Splash Potions show invalid name in statistics

What i expected to happen was:
When i would scroll over, it will should show valid name (Lingering Potion)
What has happened was:
It showed me invaild text (item.lingering_potion.name)

Steps to reproduce:
1. Go into a world
2. Grab a Lingering Potion
3. Use it (throw it using R click)
4. Press Esc
5. Press 'Statistics'
6. Click 'Items'
7. Mouse over a lingering Potion
8. You'll get an invalid name (item.lingering_potion.name)

Also affects splash potions.