[Matrix]: fix a bug in runA() of a bulk operator.
[Matrix]: fix a bug in runA() of a bulk operator.

zheng-da/FlashX,zheng-da/FlashX,flashxio/FlashX,icoming/FlashX,zheng-da/FlashX,flashxio/FlashX,icoming/FlashGraph,flashxio/FlashX,icoming/FlashX,icoming/FlashGraph,icoming/FlashX,flashxio/FlashX,icoming/FlashGraph,icoming/FlashX,flashxio/FlashX,flashxio/FlashX,icoming/FlashGraph,icoming/FlashGraph,icoming/FlashX,zheng-da/FlashX,zheng-da/FlashX