"Position and Zoom" sizes always refer to the whole video

Hello,

I updated Kdenlive to 19.04.03 and I think I have a problem now that I previously didn't have.

When I have a video sequence in FullHD 1920 x 1080 and I add an image that has a different dimension, then borders are automatically added. Previously I added the "Position and Zoom" effect and clicked on "Fit to ..." and the borders disappeared.

But now something has changed. Either because of the version, or I misclicked on something and now I don't know how to get back. Now all images sizes are displayed in the effect automatically as 1920 x 1080, whatever the picture really has. And clicking on "Fit to ..." makes nothing, because the effect thinks, the pictures is already perfectly adjusted to the width and height.

How can I get the previous behavior back? The zoom and position effect displays the real picture dimensions and the "fit to ..." becomes usable again? Because at the moment it's much work to scale the pictures to a borderless format.

Somehow I can't upload files (internal server error). Thus I just post a link to an example: https://i.imgur.com/6s3ou4g.jpg