[MC-158029] Effect particles from beacon become fully visible when another hidden effect is active

The particles for effects from beacons are reduced/faded. These particles become fully visible if other effects (with hideParticles=true) are added.

Create a beacon and enable an effect
Give yourself a hidden effect
```
/effect give @s night_vision 100 0 true
```
→ ❌ Notice that fully visible particles are visible

Linked issues

Here are the combinations I observed, all seem correct except this case.

Hidden	Ambient	Normal	Result
			Hidden ✔
		✔	Normal ✔
	✔		Ambient ✔
	✔	✔	Normal ✔
✔			Hidden ✔
✔		✔	Normal ✔
✔	✔		Normal ❌
✔	✔	✔	Normal ✔

Can confirm in 20w51a.

Can confirm in 21w03a.

Can confirm in 21w06a.

Can confirm in 1.16.5 and 21w08b.

pine1needle 2021-07-10T04:28:50Z

This is a duplicate of MC-96535.

Thank you for your report!
We're tracking this issue in MC-96535, so this ticket is being resolved and linked as a duplicate.

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