Upgrading fontconfig-config causes fonts to look aliased

I'm using Ubuntu 18.04 dev and upgrading fontconfig-config to version 2.12.6-0ubuntu1 changed its dependencies from "fonts-dejavu-core | ttf-bitstream-vera | fonts-freefont-ttf | gsfonts-x11, ucf (>= 0.29)" to "ucf (>= 0.29), fonts-dejavu-core | ttf-bitstream-vera | fonts-liberation | fonts-freefont" which caused at default fonts-dejavu-core being additionally installed.

My system has also ttf-mscorefonts-installer installed which utilizes custom rules to emulate the sharp looking fonts behavior Windows systems had. But installing fonts-dejavu-core alone causes this sharp look to get aliased again in the most places. A workaround for fontconfig-config is to install fonts-liberation as it seems to not break the sharp look.

I can't tell exactly which of the 3 possible packages is the main cause for this issue:
- Is that the installation of fonts-dejavu-core alone breaks the look a bug?
- Needs ttf-mscorefonts-installer an update to take over priority or such?
- Or is it possible that fontconfig-config could also technically support ttf-mscorefonts-installer as additional fonts dependency choice?