[O] set Babel default header argument don't eval when export seems does not work

[stardiviner]

I set Babel default header arguments to this:

,----
| (setq-default org-babel-default-header-args
|               '((:session . "none")
|                 (:noweb . "no") (:hlines . "no")
|                 (:tangle . "no") (:comments . "links")
|                 (:cache . "yes")
|                 (:results . "replace")
|                 ;; for exporting
|                 (:eval . "never-export")
|                 (:exports . "both")
|                 ))
`----

When I export with org-publish, src blocks still evaluated. Seems `:eval 
never-export` does not work?

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