Layout broken when book has style on `html`/`body` with `!important`

Hello,
I just installed Foliate 3.0.0 from Flatpak on Fedora 38.
Now I am seeing again the issue reported here: https://github.com/johnfactotum/foliate/issues/840

I believe this behavior had stopped happening at some point in the latest releases. Now in this new version I am seeing it again,

thanks,
