In a situation in which you have 2 authors that are both named Barnaby Conrad but one has the authorized name of dates 1922-2013 and the other has III, 1952-. If you click on one of their names for a search from a record where they are the author, results for both show up as the search just does au:"Conrad, Barnaby,". Configuring subfields in the Elastic search do not resolve the problem. Current work around is to enable 'UseAuthoritiesForTracing.'
I think the problem here is actually in the XSLT - the links we form don't include the date fields: koha-tmpl/opac-tmpl/bootstrap/en/xslt/MARC21slim2OPACDetail.xsl 1811 <xsl:otherwise> 1812 <xsl:attribute name="href">/cgi-bin/koha/opac-search.pl?q=au:"<xsl:value-of select="str:encode-uri(marc:subfield[@code='a'], true())"/>"</xsl:attribute> 1813 </xsl:otherwise> So the searches will always be for the name portion only