Observers don't trigger for override components

[nimble0]

Describe the bug
Observers don't trigger for override components added from a prefab. Behaviour is as expected in v3.2.11.

To Reproduce
Edited flecs/examples/cpp/prefabs/src/main.cpp

#include <basics.h>
#include <iostream>


struct Defense {
	double value;
};

struct Armour {
	double value;
};

int main() {
	flecs::world ecs;

	// inherited components trigger observer
	//ecs.component<Defense>().add(flecs::OnInstantiate, flecs::Inherit);
	//ecs.component<Armour>().add(flecs::OnInstantiate, flecs::Inherit);

	ecs.observer<const Defense, Armour>("CalculateArmour")
		.event(flecs::OnSet)
		.each([&](const Defense& defense, Armour& armour)
		{
			armour.value = 1.0 / defense.value;
			std::cout << "observer trigger\n";
		});

	// Create a SpaceShip prefab with a Defense component.
	std::cout << "make prefab\n";
	flecs::entity SpaceShip = ecs.prefab("SpaceShip")
		.set<Defense>({ 50 })
		.set(Armour{});

	// Create a prefab instance
	std::cout << "make prefab instance\n";
	flecs::entity inst = ecs.entity("my_spaceship").is_a(SpaceShip);

	// calling modified triggers the observer as expected
	//inst.modified<Armour>();
}

Expected output (v3.2.11)

make prefab
make prefab instance
observer trigger

Actual output

make prefab
make prefab instance

[SanderMertens]

Fixed!