#16 error with footnotes in revtex4-1

[Fred Jendrzejewski]

I get a compilation failure if I add a footnote into the latex file on a mac if the documentclass is set to be revtex4-1.

The failure goes away as soon as the documentclass is changed to be article.

[Fred Jendrzejewski]

The error message is:

Use of \NAT@star@cite@post doesn't match its defini
tion.
\@ifnextchar ... \reserved@d =#1\def \reserved@a {
#2}\def \reserved@b {#3}\f...
l.13 \footnote{
But things fail now.}