$ git clone -n https://src.fedoraproject.org/rpms/libxml++30.git /var/lib/mock/f31-build-62934-29271/root/chroot_tmpdir/scmroot/libxml++30
Cloning into '/var/lib/mock/f31-build-62934-29271/root/chroot_tmpdir/scmroot/libxml++30'...
$ git reset --hard b3d33f914aaa554ce5f68c6a8f4030b697208d66
HEAD is now at b3d33f9 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild