Wrong trash can icon size breaks toolbar buttons in Evolution

[MV-SH]

I'm running into a problem with Obsidian icons (latest 4.8) when used with Evolution - the huge trash can icon in the toolbar bloats all buttons in the bar to the same incorrect size (see screenshot).

I don't completely understand how context sizes in icon themes are applied and only found the (probable) cause by elimination method, but as a workaround, setting the [places/48] context MinSize to 24 puts the trash can icon back in place and renders the toolbar correctly.

Not saying this would be a correct fix as I don't know about the implications elsewhere, but someone more knowledgeable about the icon themes could probably find what's the actual problem here and why the trash can causes that.

[MV-SH]

Just as an update, the problem is still present in latest 4.9 release. Only happens with Obsidian, not with other icon packs, but I can't pinpoint the root of the problem, the theme definition looks quite normal.

[madmaxms]

Does this problem still appear when setting minsize back to 48? In the latest version with Evolution 3.36 (Fedora 32) it's working correctly