$ git clone -n https://src.fedoraproject.org/rpms/libfonts.git /var/lib/mock/f45-build-16178-483/root/chroot_tmpdir/scmroot/libfonts
Cloning into '/var/lib/mock/f45-build-16178-483/root/chroot_tmpdir/scmroot/libfonts'...
$ git fetch origin f77bb0088018c6dbee03c1b5aa4557bcc1f39a12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libfonts
 * [new ref]         f77bb0088018c6dbee03c1b5aa4557bcc1f39a12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f77bb00 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild