With suppressing I mean "avoid the fullscreen/pinpad notification move from the internal snap-decisions queue into the displayed queue" until the displayed queue is empty again, thus the fullscreen/pinpad notification would be the only notification being shown.
The other case would apply as well... "don't let any notification move from an internal queue to the displayed-queue until the the fullscreen/pinpad notification is no longer displayed".
With suppressing I mean "avoid the fullscreen/pinpad notification move from the internal snap-decisions queue into the displayed queue" until the displayed queue is empty again, thus the fullscreen/pinpad notification would be the only notification being shown.
The other case would apply as well... "don't let any notification move from an internal queue to the displayed-queue until the the fullscreen/pinpad notification is no longer displayed".