[O] Can `org-element-map' act on secondary-strings?

[Thorsten Jolitz]

Hi List, 

when parsing an Org file with org-element-parse-buffer, headline titles
and section contents (e.g.) end up as secondary strings in the
parse-tree that do have a ':parent' attribute.

When I try to modify all :parent attributes inside a parse-tree with
`org-element-map' (by mapping over all element and object types), the
secondary strings in the parse-tree remain untouched.

Is there a way to make `org-element-map' act on these secondary strings
too? 

-- 
cheers,
Thorsten