Spears are very inconsistent against skeletons and often deal no damage

When trying to use the charge attack against a skeleton in survival mode, most of the time it simply deals no damage.

Steps to reproduce:

1. run the following command so you won’t die: /effect give @p minecraft:resistance 1000 4 true

2. set the time to 12600 so the skeleton doesn’t burn, but other mobs won’t interfere

3. go into survival, spawn a skeleton

4. attempt to use the charge attack against the skeleton by sprinting

Expected result:

The spear will damage the skeleton

Observed result:

The spear will often fail to damage the skeleton, just knocking it back

I attached multiple videos as examples to demonstrate the bug