Fishing bobbers don't slide on any type of ice

The Bug:

Fishing bobbers don't slide on any type of ice.

Steps to Reproduce:

1. Obtain a fishing rod and summon some ice by using the command provided below.

   /fill ~1 ~ ~1 ~5 ~ ~5 minecraft:ice

2. Use your fishing rod while looking at the top faces of the ice blocks.
3. Take note as to whether or not fishing bobbers slide on any type of ice.

Observed Behavior:

Fishing bobbers don't slide on any type of ice.

Expected Behavior:

Fishing bobbers would slide on all types of ice.