Creative Mode Inventory Glitch

When you die of falling out of the world, and then respawn, your inventory has a lot of empty spaces.

What I expected to happen was:
The inventory to stay the same

What actually happened was:
Respawning added a lot of extra empty slots in the inventory

Steps to Reproduce:
1. Make a creative mode world and dig all the way down until you fall and die
2. Respawn then look at your inventory.