Spawneggs of Skeleton with Tipped Arrow in Offhand cannot summon skeletons shooting arrows

use this command:
minecraft:give @p spawn_egg 1 0 {EntityTag:{id:"minecraft:skeleton",HandItems:[{},{id:"minecraft:tipped_arrow",Count:32b,tag:{Potion:minecraft:slowness}}]}}

then use this spawnegg to spawn a skeleton,it wont shoot its arrows