$ git clone -n https://src.fedoraproject.org/rpms/xml2.git /var/lib/mock/f31-build-101330-33380/root/chroot_tmpdir/scmroot/xml2
Cloning into '/var/lib/mock/f31-build-101330-33380/root/chroot_tmpdir/scmroot/xml2'...
$ git reset --hard 3cc4ebfc7e6a39f59ae8a7dd7a1fadf3c3ee3ac1
HEAD is now at 3cc4ebf - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild