Observables + usestate + useeffect stuck forever

[fonsp]

In this notebook, the last cell is stuck running forever and can't be interrupted.

# ╔═╡ b0d2f6ee-53d9-11ef-1488-89e1652a0a68
using Observables

# ╔═╡ 5826d8f7-9aeb-438d-b426-ac166ab9800c
using PlutoHooks

# ╔═╡ dcc6a1e5-29ea-4f57-9bc6-cbaa923c0e2c
obs = Observable(0)

# ╔═╡ d2796325-fae8-4080-9178-35e115ee7cd7
zzz = let
	state, set_state = @use_state(obs[])

	Observables.on(set_state, obs)
	@use_effect([]) do
		
		return () -> Observables.off(set_state)
	end

	state
end

# ╔═╡ b7b29cef-bee6-4258-b411-968c0f1f9667
rand(zzz)

# ╔═╡ 5e6e0ef9-7387-469b-97a7-5d552e0f2eab
for i in 1:3
	sleep(1)
	obs[] = i
end

Found this while working on fonsp/Pluto.jl#2895