Some chunks are lit without a light source

seed: 107038380838084

/execute in minecraft:overworld run tp @s -735.22 33.46 1297.09 -253.56 44.25

Easier to reproduce:

seed: 4256206517899567827

/execute in minecraft:overworld run tp @s -4870.09 -18.34 527.63 -1352.45 -22.20

Note: If you can't reproduce this bug,
Create a world
Go to coordinate
Leave the world
Delete all the chunks in the world folder
Enter the world