$ git clone -n https://src.fedoraproject.org/rpms/libxmlb.git /var/lib/mock/f31-build-62941-29271/root/chroot_tmpdir/scmroot/libxmlb
Cloning into '/var/lib/mock/f31-build-62941-29271/root/chroot_tmpdir/scmroot/libxmlb'...
$ git reset --hard 58d1b8e0a24639b7dae7f2d62eec4dde2e3147b5
HEAD is now at 58d1b8e - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild