Explicitly terminate processor before pushing back, #377

lib/sidekiq/manager.rb

@@ -129,6 +129,7 @@ module Sidekiq
               # processor is an actor proxy and we can't call any methods
               # that would go to the actor (since it's busy).  Instead
               # we'll use the object_id to track the worker's data here.
+              processor.terminate if processor.alive?
               msg, queue = @in_progress[processor.object_id]
               conn.lpush("queue:#{queue}", msg)
             end