$ git clone -n https://src.fedoraproject.org/rpms/gfs-didot-fonts.git /var/lib/mock/f45-build-9809-409/root/chroot_tmpdir/scmroot/gfs-didot-fonts
Cloning into '/var/lib/mock/f45-build-9809-409/root/chroot_tmpdir/scmroot/gfs-didot-fonts'...
$ git fetch origin 1779b63f1c5ad6d857315e19941a29f7e3c676af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gfs-didot-fonts
 * [new ref]         1779b63f1c5ad6d857315e19941a29f7e3c676af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1779b63 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild