Fix child task inheriting parent logger.

lib/async/reactor.rb

@@ -47,9 +47,7 @@ class Reactor < Node
 		# running.
 		def self.run(*arguments, **options, &block)
 			if current = Task.current?
-				reactor = current.reactor
-
-				return reactor.async(*arguments, **options, &block)
+				return current.async(*arguments, **options, &block)
 			else
 				reactor = self.new
 

lib/async/task.rb

@@ -81,7 +81,7 @@ def initialize(reactor, parent = Task.current?, logger: nil, finished: nil, **op
 			@result = nil
 			@finished = finished
 
-			@logger = logger
+			@logger = logger || parent&.instance_variable_get(:@logger)
 
 			@fiber = make_fiber(&block)
 		end

spec/async/logger_spec.rb

@@ -56,6 +56,7 @@
 
 	it "can use parent logger" do
 		current_logger = Console.logger
+		child = nil
 
 		Async(logger: logger) do |parent|
 			child = parent.async{|task| task.yield}
@@ -66,6 +67,8 @@
 			expect(Console.logger).to be == logger
 		end.wait
 
+		expect(child.logger).to be == logger
+
 		expect(Console.logger).to be == current_logger
 	end
 end