* @ref forceplay will both be zero. Therefore @c beforepoll is not called.
*
* @c afterpoll on the other hand @b is called and will return nonzero. The
* result is that we call @c play(0). This will call activate(), setting
* @ref forceplay will both be zero. Therefore @c beforepoll is not called.
*
* @c afterpoll on the other hand @b is called and will return nonzero. The
* result is that we call @c play(0). This will call activate(), setting