Nested emphasis

Hi,

A coworker reported an issue in FO output with a nested emphasis:

- <emphasis role="bold"><emphasis>foo</emphasis></emphasis> displays "foo" in 
regular bold.

- <emphasis><emphasis role="bold">foo</emphasis></emphasis> displays "foo" in 
bold italics.

This happens because the template in inline.xsl counts the total number of 
ancestor emphasis elements when it does not have a @role - notwithstanding the 
@role attribute on those ancestor.

On a related note, is there a reason why this (and some other templates are 
counting dots in the number generated for the current emphasis, rather than 
doing a simple count(ancestor::emphasis)?

Or in other words, any objections to committing the attached patch?

Regards,
Alexey.