for example:
ob{b}ripi/lationis (!obripilationes)
which would, in current practice, be encoded as:
<sic corr="obripilationes">ob<corr
sic="b"></corr>ripi<lb type="worddiv"/> lationis</sic>
produces a result in the standard stylesheets that
omits to mark the inner correction.
This is because the values are produced with
<xsl:value-of/> instead of something like
<xsl:apply-templates/>.
I'm pretty sure this is obsolete--both the markup and the stylesheets are completely different now. If this is still a problem, please re-open the ticket.