Someone edited my svg file and now, if I import it into Scribus 1.5.1, It is only black, all colors are gone.

This is the commit at github, where the format of the svg changed.

before, It was all in color. The new version is in color, if you open it in Inkscape or even in Browser: (save this and open in Firefox)

Only Scribus seems to loose the colors.

I did a workaround and exported it to png before importing it in my scribus project, but still, I would like to understand the problem.