[O] bug: export of results in babel/R prevents export

[Julian Gehring]

Hi,

when trying to export a file (example see below) with R code and the 
parameter ":exports" set to "both" or "results"

  Test babel
  #+BABEL: :exports both :session
  #+begin_src R
  1:10
  #+end_src

to html or pdf, export fails with

  "Symbol's function definition is void: copy-seq".

This worked fine with release 7.5, and appeared first with the commit
 "6ddad0a: ob: not including export-variable headers in cache sha1"
(and is still present with the latest version).

Can anyone confirm this behavior?


Best
Julian