Comment 3 for bug 1570074

These bitmap images generated and added via 'Make a Bitmap Copy' lack the attribute 'preserveAspectRatio' with value 'none' - the rendering as such is technically "correct" after transforming the bitmap image non-uniformly (corresponding to the SVG spec), but user expectation would be that Inkscape adds the attribute and sets it to 'none' to allow non-uniform scaling (as it does for pasted and imported bitmap images with >= 0.91).