Attribute "follow_range" is not working for hostile mobs before they find the target

When you summon a hostile mob with /summon command and "Attributes" tag, the "follow_range" is ineffective, if you are far from this hostile mob, it won't chase you unless you close to it, just like their "follow_range" is default
The command is

/summon minecraft:skeleton ~ ~ ~ {Attributes:[{Name:generic.follow_range,Base:100}],PersistenceRequired:1}

Remember to change the time to night, or the skeleton will be burned to death
I don't know which version did this issue appeared, but it exactly didn't happen in 1.13

OK, I tested it again today, When the skeleton find you, the "follow_range" will be useful as usual, it will keep chaseing you unless you run out its changed "follow_range"(you set) not its default "follow_range", this bug will only happens before the hostile mobs find you.

Code analysis

Code analysis by Insane96MCP can be found in this comment.