Tropical fish spawn with black colors since 1.19.3

Based on 1.13 patch notes, tropical fish were meant to only with 15 colors. Black was excluded because it can make the eyes hard to see. However, since 1.19.3 (to my current knowledge), tropical fish can spawn with black colors. 

 

This can affect both the base color and pattern.

 

Images attached show tropical fish that have spawned in my survival world.