The fog color no longer transitions smoothly when the weather changes at night while under the Night Vision effect

This behavior was introduced in 25w19a.

Steps to reproduce

1. Give yourself the Night Vision effect.

   effect give @s minecraft:night_vision infinite 0 true

2. Set the time to midnight.

   time set minecraft:midnight

3. Toggle downfall. If the weather is clear, set it to rain or thunder; otherwise, set it to clear.

   weather clear

   weather rain

   weather thunder

Observed behavior

The color of the fog will rapidly and abruptly change back and forth.

Expected behavior

The color would transition smoothly, as was the case in previous versions.