$ git clone -n https://src.fedoraproject.org/rpms/genromfs.git /var/lib/mock/f31-build-93311-32397/root/chroot_tmpdir/scmroot/genromfs
Cloning into '/var/lib/mock/f31-build-93311-32397/root/chroot_tmpdir/scmroot/genromfs'...
$ git reset --hard 6a3f650ed9e137cd4b270a38ccb4eb64dd515fd4
HEAD is now at 6a3f650 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild