$ git clone -n https://src.fedoraproject.org/rpms/libxml++30.git /var/lib/mock/f40-build-754231-117630/root/chroot_tmpdir/scmroot/libxml++30
Cloning into '/var/lib/mock/f40-build-754231-117630/root/chroot_tmpdir/scmroot/libxml++30'...
$ git reset --hard e6ccda48ed5cab890ff1c0df79576d2a3358ca9c
HEAD is now at e6ccda4 Fix building against libxml2 2.12.0 and above