$ git clone -n https://src.fedoraproject.org/rpms/jxrlib.git /var/lib/mock/f31-build-56248-28204/root/chroot_tmpdir/scmroot/jxrlib
Cloning into '/var/lib/mock/f31-build-56248-28204/root/chroot_tmpdir/scmroot/jxrlib'...
$ git reset --hard 6947edd9671fee312e8a3425c3f26202a3477697
HEAD is now at 6947edd - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild