$ git clone -n https://src.fedoraproject.org/rpms/redhat-fonts.git /var/lib/mock/f45-build-34406-686/root/chroot_tmpdir/scmroot/redhat-fonts
Cloning into '/var/lib/mock/f45-build-34406-686/root/chroot_tmpdir/scmroot/redhat-fonts'...
$ git fetch origin e610f9f17c95e1e29e153cce7a99daf1c2bb7b34:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/redhat-fonts
 * [new ref]         e610f9f17c95e1e29e153cce7a99daf1c2bb7b34 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e610f9f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild