Why is `~/.hgrc` a remote security hole when checked in?

[Sam Steingold]

I was told on http://bz.selenic.com/show_bug.cgi?id=3147
that `~/.hgrc` is a remote security hole when checked in.

why?

-- 
Sam Steingold (http://sds.podval.org/) on Ubuntu 12.04 (precise) X 11.0.11103000
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