[MC-79998] summon glitch

this command

/summon Skeleton ~ ~1 ~ {Equipment:[{},{},{},{},{id:"skull",Count:1b,Damage:3b,tag:{SkullOwner:{Id:8510ee02-4926-4bfa-8ef4-e470c0c3ecb9,Properties:{textures:[{Value:e3RleHR1cmVzOntTS0lOOnt1cmw6Im1jbWlrZTExMTEifX19}]}}}}],DropChances:[0.085F,0.085F,0.085F,0.085F,0.0F],Riding:{id:"Zombie",IsBaby:1,Attributes:[{Name:zombie.spawnReinforcements,Base:0.0F}],Silent:1}}

glitched, player model went to skeleton, some of the mobs began randomly dinnerboning. killing zombie didn't do anything. then the screen turned to black, but the game didn't crash. as soon as i killed the skeleton, everything went back to normal.