$ git clone -n https://src.fedoraproject.org/rpms/libXxf86vm.git /var/lib/mock/f31-build-67846-30107/root/chroot_tmpdir/scmroot/libXxf86vm
Cloning into '/var/lib/mock/f31-build-67846-30107/root/chroot_tmpdir/scmroot/libXxf86vm'...
$ git reset --hard 248539d8bed8ceea7255c75c27cdfa298983400f
HEAD is now at 248539d - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild