Fall damage on edge of slime blocks

Falling on the very edge of a slime block creates a fall damage even when there is no other block next to it.

I thought I would bounce back like I normally do with slime blocks when falling from a high place.

What actually happened is I died because of the fall damage it created.

If you have multiple slime blocks next to each other it will only occur on the very edge if there is not other block next to it.