The fog that is generated in the nether and in the end during the fight with the ender dragon and the underwater fog is not displayed correctly when the player has the darkness effect with duration between 1 and 6 seconds. Any duration over 6 seconds will charge the darkness cloud, so the fog cannot be seen. When the effect is over, the fog in these areas will be displayed correctly again.

Steps to reproduce:

1. Create a world with cheats activated
2. Go to the nether
3. Run the following command:

                    /effect give @p minecraft:darkness 6

       4. Take notice if the fog of the nether are eliminated when you have the effect

Expected behavior:

Nether and End fog may be displayed correctly when you have the darkness effect with duration between 1 and 6 seconds

Observed behavior:

Nether and End fog are eliminated when you have the darkness effect with the indicated duration