$ git clone -n https://src.fedoraproject.org/rpms/manchu-fonts.git /var/lib/mock/f45-build-17995-506/root/chroot_tmpdir/scmroot/manchu-fonts
Cloning into '/var/lib/mock/f45-build-17995-506/root/chroot_tmpdir/scmroot/manchu-fonts'...
$ git fetch origin 340424643ad7210da599270a12e491f2f95861c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/manchu-fonts
 * [new ref]         340424643ad7210da599270a12e491f2f95861c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3404246 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild