The Bug:

Capes improperly follow the movement of players that are crawling or swimming.

It appears that the position of a cape changes in relation to the movement of the player. While this is fine, this causes some issues when the player crawls or swims. For example, when a player swims at high speeds, their cape will be positioned too high up and in a way that appears illogical. This is because capes aren't angled differently when players are swimming.

Steps to Reproduce:

1. Ensure that you have a cape enabled.
2. Give yourself the water breathing and dolphin's grace effects by using the commands provided below.

   /effect give @s minecraft:water_breathing infinite 0 true

   /effect give @s minecraft:dolphins_grace infinite 0 true

3. Switch to third person, begin swimming at high speeds, and watch your cape closely.
4. Take note as to whether or not capes improperly follow the movement of players that are crawling or swimming.

Observed Behavior:

Capes improperly follow the movement of players that are crawling or swimming, causing capes to be angled too high up when moving while crawling or swimming.

Expected Behavior:

Capes would properly follow the movement of players that are crawling or swimming.