Not a bug, just implemented without proper precautions.
I've had one spawn next to a friendly AI territory. I cancelled the NAP immediately but when I declared war they had already taken the relic. Yay. Of course taking their whole empire doesn't give me the relic, it's just gone.
It should really first look for uncolonized worlds, then colonized and only then go for anything outside of that empires control.
It looks for an uninhabited planet in your or neutral space first, but if it does not find one, it will simply grab the closest habitable but uninhabited planet that it can find, no matter who owns it.
immediate = {
closest_system = {
limit = {
has_access_fleet = root.owner
NOR = {
is_same_value = root.solar_system
has_star_flag = first_grunur_site@root.owner
has_star_flag = sol_system
}
OR = {
has_owner = no
owner = { is_same_value = root.owner }
}
any_system_planet = {
habitable_planet = yes
NOT = { is_planet_class = pc_city }
has_anomaly = no
NOT = { exists = archaeological_site }
NOT = { has_planet_flag = suppress_archaeological_sites }
is_colony = no
}
}
min_steps = 1
max_steps = 10
root.owner = { set_visited = prev }
random_system_planet = {
limit = {
habitable_planet = yes
NOT = { is_planet_class = pc_city }
has_anomaly = no
NOT = { exists = archaeological_site }
NOT = { has_planet_flag = suppress_archaeological_sites }
is_colony = no
}
save_event_target_as = baol_colony_3
}
}
if = { #It is possible that that will not find a system with a valid planet. In that case, sorry player, but we'll have to spread the net a bit
limit = { NOT = { exists = event_target:baol_colony_3 } }
closest_system = {
limit = {
NOR = {
is_same_value = root.solar_system
has_star_flag = first_grunur_site@root.owner
has_star_flag = sol_system
}
any_system_planet = {
habitable_planet = yes
NOT = { is_planet_class = pc_city }
has_anomaly = no
NOT = { exists = archaeological_site }
NOT = { has_planet_flag = suppress_archaeological_sites }
is_colony = no
}
}
root.owner = { set_visited = prev }
random_system_planet = {
limit = {
habitable_planet = yes
NOT = { is_planet_class = pc_city }
has_anomaly = no
NOT = { exists = archaeological_site }
NOT = { has_planet_flag = suppress_archaeological_sites }
is_colony = no
}
save_event_target_as = baol_colony_3
}
}
}
}