Even-odd fill rule being ignored?

[maganap]

Hello!

I have a set of SVG icons, and a few of them have the compound path issue that can be solved by following this steps:
https://github.com/fontello/fontello/wiki/How-to-use-custom-images#preparing-images-in-adobe-illustrator

I found no way to fix the problem for one of the icons, though, so I asked for support in Affinity Designer forum. I was told by the QA team:

I think Flutter[icon] is forcing everything to render with a Winding (Nonzero) Fill Mode and ignoring the fact the SVGs explicitly say to use even-odd fill rule

From my knowledge I can't really tell, but I thought to bring this to your attention in case it's useful.
Here's the full story and the workaround suggested (which worked):

https://forum.affinity.serif.com/index.php?/topic/161736-svg-to-font-glyphs-after-path-compound-not-as-expected/

And the problematic icon:

I hope it helps