$ git clone -n https://src.fedoraproject.org/rpms/gfs-ignacio-fonts.git /var/lib/mock/f45-build-9837-409/root/chroot_tmpdir/scmroot/gfs-ignacio-fonts
Cloning into '/var/lib/mock/f45-build-9837-409/root/chroot_tmpdir/scmroot/gfs-ignacio-fonts'...
$ git fetch origin 2b6f4fe559febc4cf556226087a2745f57e3def0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gfs-ignacio-fonts
 * [new ref]         2b6f4fe559febc4cf556226087a2745f57e3def0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b6f4fe Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild