The Bug:

Camels aren't required for the "Two by Two" advancement.

Steps to Reproduce:

• Award yourself with the "The Parrots and the Bats" advancement by using the following command.

• /advancement grant @s only minecraft:husbandry/breed_an_animal

• Open your advancements menu and locate the "Two by Two" advancement and take note of its current progression.
• Summon two camels and breed them.
• Open your advancements menu once again and look at the progression of the "Two by Two" advancement.
• Take note as to whether or not camels are required for the "Two by Two" advancement.

Observed Behavior:

Camels aren't required for the "Two by Two" advancement.

Expected Behavior:

Camels would be required for the "Two by Two" advancement.