message: Add comment on when `DeviceReset` is called.
diff: @@ -785,7 +785,10 @@ private:
  /**
  * Controls whether the DeviceReset function should be called thanks to a
  - * boolean.
  + * boolean. Note that in any case, `DeviceReset` is called only after destroying
  + * the last Ginkgo executor. Therefore, it is sufficient to set this flag to the
  + * last living executor in Ginkgo. Setting this flag to an executor which is not
  + * destroyed last has no effect.
  */
  class EnableDeviceReset {
  public:
  