Unfortunately, I cannot reproduce the issue. If you inspect the ::after element and then look into the computed values you can see where the font styles come from.
In my case, everything is as it should be. Please test it again with the soon to be released 1.8 beta 2.
@aljazbz Can you email us some temporary admin login details, so we can have a look at your site to replicate and debug the issue? Please also include the link to this forum post. Thank you
@aljazbz Thank you so much for confirming the fix via email Will be part of 1.8-stable.
@HeroRox This seem to be a different issue. Could you share some temporary admin login details with us via email, so I can have a look at your site to replicate and debug the issue?