Merge pull request #1221 from paullouisageneau/fix-notify-queue-limit

Fix missing notify on queue limit preventing thread from waking up

src/impl/queue.hpp

@@ -105,6 +105,7 @@ template <typename T> optional<T> Queue<T>::pop() {
  mAmount -= mAmountFunction(mQueue.front());
  optional<T> element{std::move(mQueue.front())};
  mQueue.pop();
+ mPushCondition.notify_one();
  return element;
 }