Description of problem:
TTC version of this fonts saves a lot of spaces even though there may be some issues can be seen in some applications. it's good to try earlier and fix as far as possible.
See https://pagure.io/fedora-workstation/issue/46#comment-504344 for the size estimation
Built for rawhide:
Created PR for Fedora 29 comps:
Both google-noto-cjk-fonts and Fedora 29 comps changes are in rawhide now.