$ git clone -n https://src.fedoraproject.org/rpms/fonttools.git /var/lib/mock/f41-build-side-1-2786504-32612/root/chroot_tmpdir/scmroot/fonttools
Cloning into '/var/lib/mock/f41-build-side-1-2786504-32612/root/chroot_tmpdir/scmroot/fonttools'...
$ git fetch origin c3f35c8f489fbdf07854207c85e1fcf632668981:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fonttools
 * [new ref]         c3f35c8f489fbdf07854207c85e1fcf632668981 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c3f35c8 Update to 4.54.1 version (#2314462)