Jungle camps have a spawn in animation that takes time, so for some older jungle camps, in order for them to be attacked at 1:00, they actually had to spawn in at 0:57
A common bug was that time wasnt accounted for, so things would "spawn" at 1:00 but not be hittable until 1:03
Newer jungle monsters are able to be attacked during that animation, so this is just clarifying that for the Classic Joust map - all buff monsters will be able to be attacked at the intended time which is 0:00