next in menu also below, error message?

[Patrice Dumas]

Hello,

This is a variant of the issue of node/menu not following a strict
tree hierarchy.  In the following example

 @node Top

 @menu
 * chapter::
 @end menu

 @node chapter
 @chapter chapter

 @menu
 * section::
 * subsection::
 @end menu

 @node section
 @section section

 @menu
 * subsection::
 @end menu

 @node subsection
 @subsection subsection

section is prev for subsection and section is also up of subsection.  Should
there be a warning?  My feeling is no, as it is a valid construct, and 
if someone wants to have specific directions, he should not rely on 
automatic directions.

-- 
Pat