from downstream: https://commons.wikimedia.org/wiki/User_talk:JoKalliauer#BackgroundImage_filter_antialiasing_pixel_artifacts and https://en.wikipedia.org/wiki/Special:PermanentLink/1053188388#SVG_multiply_blending

What happens?:

• https://commons.wikimedia.org/wiki/File:Librsvg_bug_backgroundimage_artifact.svg shows magenta dots in the preview (at the border of the elements) at the left half

What should have happened instead?:

• no magenta dots as on the right half

Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc:
c-librsvg2.40.21 (fixed in rust-librsvg2.52,rendersvg,Inkscape,batik)