Iron golem high crack texture overlaps the low and medium cracks, causing the crack textures to look the same

The crack textures for iron golems are broken, every crackiness level looks identical to the high crackiness texture as if the "crackiness high" texture is overlapping the "low and medium crackiness". This can be reproduced by hitting a golem 4 times with a diamond sword which causes the crackiness high texture to be displayed instead of the low crackiness texture.