$ git clone -n https://src.fedoraproject.org/rpms/isoimagewriter.git /var/lib/mock/f31-build-54039-27937/root/chroot_tmpdir/scmroot/isoimagewriter
Cloning into '/var/lib/mock/f31-build-54039-27937/root/chroot_tmpdir/scmroot/isoimagewriter'...
$ git reset --hard 02499ffb9b670cea5edb9a8eaf20ebb1b693f150
HEAD is now at 02499ff - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild