Soul Speed effect persists after boots break when swapping between two pairs on soul sand

Expected behavior

The speed effect should be removed once the player is no longer wearing boots with Soul Speed.

Observed/Actual behavior

The speed effect remains active for the entire session regardless of surface, does not reset on death, but is removed upon reconnecting to the server.

Steps/models to reproduce

1. Have two pairs of boots enchanted with Soul Speed - one nearly broken and one with full durability
2. Equip the nearly broken boots and start running on soul sand while rapidly swapping between the two pairs
3. Once the boots break, the speed effect persists for the entire session and applies on any surface

Plugin and Datapack List

ℹ Server Plugins (0):

Paper version

This server is running Paper version 26.1.2-70-ver/26.1.2@70eaed6 (2026-06-14T10:18:21Z) (Implementing API version 26.1.2.build.70-stable)
You are running the latest version

Other

No response

Start by reproducing the issue on Paper 26.1.2-70 using two Soul Speed boots with different durability, rapidly swapping them while running on soul sand. Trace the Soul Speed effect lifecycle around boot breakage, death, surface changes, and reconnecting; done means the effect is removed when no Soul Speed boots are worn and does not persist across those transitions.