Custom biomes cannot replace other custom biomes using the  minecraft:replace_biomes  component

If you use the  minecraft:replace_biomes  component in a custom biome to replace another custom biome, the game will throw an error:

 15:25:03 [BiomeRegistry][error] - minecraft:replace_biomes No biome found with name: 'default:test1' 

This error prevents the target biome from generating in the world.