Surface-brightness reconstruction from model Ew (top row), showing the best reconstruction, and from the point-like model S24 (bottom row), which was not optimized on the extended image. We show, from left to right, the observed image, the model-predicted image, the normalized residuals, and the reconstructed source (the SN host galaxy). We illustrate the sizes of the images and of the reconstructed sources with green bars of 5″and 1″, respectively. We again note that the Ew model is optimized with an approximate point spread function (see Sect. 2.3 for details), which slightly affects the final appearances of the reconstructed image and source.