PDOException: Remove code from inherited properties (fix #2803)

Author: vrana

language/predefined/exception.xml

@@ -43,7 +43,7 @@
      <varname linkend="exception.props.string">string</varname>
      <initializer>""</initializer>
     </fieldsynopsis>
-    <fieldsynopsis>
+    <fieldsynopsis xml:id="class.exception..code">
      <modifier>protected</modifier>
      <type>int</type>
      <varname linkend="exception.props.code">code</varname>

reference/pdo/pdoexception.xml

@@ -46,7 +46,7 @@
     </fieldsynopsis>
 
     <classsynopsisinfo role="comment">&InheritedProperties;</classsynopsisinfo>
-    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.exception')/db:partintro/db:section/db:classsynopsis/db:fieldsynopsis[preceding-sibling::db:classsynopsisinfo[1][@role='comment' and text()='&Properties;']]))">
+    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.exception')/db:partintro/db:section/db:classsynopsis/db:fieldsynopsis[preceding-sibling::db:classsynopsisinfo[1][@role='comment' and text()='&Properties;'] and (not(@xml:id) or @xml:id != 'class.exception..code')]))">
      <xi:fallback/>
     </xi:include>