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mesecons/internal.lua

@@ -542,6 +542,7 @@ function mesecon.turnoff(pos, link)
 	end
 
 	for _, sig in ipairs(signals) do
+		-- If sig.depth is 1, it has not yet been checked that the power source is actually off.
 		if sig.depth > 1 or not mesecon.is_powered(sig.pos, sig.link) then
 			mesecon.changesignal(sig.pos, sig.node, sig.link, mesecon.state.off, sig.depth)
 			if mesecon.is_effector_on(sig.node.name) and not mesecon.is_powered(sig.pos) then