$ git clone -n https://src.fedoraproject.org/rpms/libXv.git /var/lib/mock/f31-build-58122-28403/root/chroot_tmpdir/scmroot/libXv
Cloning into '/var/lib/mock/f31-build-58122-28403/root/chroot_tmpdir/scmroot/libXv'...
$ git reset --hard e001f98aa9b33803af7fff0133c2b03edada808f
HEAD is now at e001f98 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild