current_component does not always exist?

Author: p

lib/datadog/tracing/contrib/rack/middlewares.rb

@@ -39,7 +39,9 @@ def call(env)
 
             boot = Datadog::Core::Remote::Tie.boot
 
-            if defined?(Datadog::DI)
+            if defined?(Datadog::DI.current_component)
+              # TODO when would Datadog::DI be defined but
+              # Datadog::DI.current_component not be defined?
               Datadog::DI.current_component&.probe_notifier_worker&.start
             end