  The information encoded in the polarization of a single photon can be
transferred to a remote location by two-channel continuous-variable quantum
teleportation. However, the finite entanglement used in the teleportation
causes random changes in photon number. If more than one photon appears in the
output, the continuous-variable teleportation accidentally produces clones of
the original input photon. In this paper, we derive the polarization statistics
of the $N$-photon output components and show that they can be decomposed into
an optimal cloning term and completely unpolarized noise. We find that the
accidental cloning of the input photon is nearly optimal at experimentally
feasible squeezing levels, indicating that the loss of polarization information
is partially compensated by the availability of clones.
