The colormap of the world loading screen is black if the seed spawns you on water

Steps to reproduce:

1. Use the seed: 4015 to create a Normal type world (Before 24w40a) or use the seed: 12345702767680896 to create a Normal type world (After 24w40a).

Observed result:
The colormap of the world loading screen is black until the percentage reaches 100％.

Expected result:
The colormap of the world loading screen fills out properly in different stages.

Notes:
This happens since 1.20.5. In 1.18-1.20.4, it also is black until 20%+.