Issue with S_transitions and previously scaled layers


I am trying to use S_dissolve flash bulbs transition from layer A to layer B.

The issue I am having is that I have “fit to comp” (scaled in other words) a JPEG image to my comp size; however, when I use the transition set to layer B; it transitions into the scale of the original image; which is obviously something that doesn’t work.

How do you get the transition to transit into the SCALED photo layer; not the original one?

Thanks for help -