$ git clone -n https://src.fedoraproject.org/rpms/google-roboto-fonts.git /var/lib/mock/f45-build-12871-444/root/chroot_tmpdir/scmroot/google-roboto-fonts
Cloning into '/var/lib/mock/f45-build-12871-444/root/chroot_tmpdir/scmroot/google-roboto-fonts'...
$ git fetch origin bc73fabb53461d975916b8f2ca8860ab5d9cb0c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/google-roboto-fonts
 * [new ref]         bc73fabb53461d975916b8f2ca8860ab5d9cb0c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc73fab Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild