[XeTeX] Problem with XeTeX 0.9999.2 and includegraphics

[Jeremy Van Cleve]

Hello,

I've having problems including some PDF graphics using the 0.9999.2 
version of XeTeX in the MacTeX 2013 pretest.  It appears to related to 
having a period "." in the file name in addition to the ".pdf"

Using a minimal example of

\documentclass[11pt]{article}

\usepackage{graphicx}

\begin{document}

\includegraphics[scale=0.25]{figure1.pdf}

\includegraphics[scale=0.25]{figure.1.pdf}

\end{document}

works fine with 0.9998 but not with 0.9999.2.

-Jeremy