Looking at the source SVG  in Inkscape, there are definitely more
layers which are not visible by default, but contains something what is
visible on the Koji  versions of images.
The question is why the result is different. There is probably some tool
used to convert SVG to JPG, which behaves differently on your system
(F25 or F26?) and on Rawhide or different tool is used for some reason?
I think that this  is the script which drives the conversion ...