in index.html metadata, ignore <keyword> metadata in @keys definitions

Signed-off-by: chrispy <[email protected]>

src/main/plugins/org.dita.html5/xsl/get-meta.xsl

@@ -248,8 +248,8 @@ See the accompanying LICENSE file for applicable license.
     <xsl:variable name="keywords-content">
       <!-- for each item inside keywords (including nested index terms) -->
       <xsl:for-each select="descendant::*[contains(@class,' topic/prolog ')]/*[contains(@class,' topic/metadata ')]/*[contains(@class,' topic/keywords ')]/descendant-or-self::* |
-                            descendant::*[contains(@class,' map/topicmeta ')]/*[contains(@class,' topic/keywords ')]/descendant-or-self::* |
-                            descendant::*[contains(@class,' map/topicmeta ')]/*[contains(@class,' topic/metadata ')]/*[contains(@class,' topic/keywords ')]/descendant-or-self::*">
+                            descendant::*[contains(@class,' map/topicmeta ')][not(ancestor::*[@keys])]/*[contains(@class,' topic/keywords ')]/descendant-or-self::* |
+                            descendant::*[contains(@class,' map/topicmeta ')][not(ancestor::*[@keys])]/*[contains(@class,' topic/metadata ')]/*[contains(@class,' topic/keywords ')]/descendant-or-self::*">
         <!-- If this is the first term or keyword with this value -->
         <xsl:if test="generate-id(key('meta-keywords',text()[1])[1]) = generate-id(.)">
           <xsl:if test="position() > 2">