* lisp/org.el (org-export-backends): Do not reset list of loaded back-ends to variable's value after a reload.
@@ -456,6 +456,7 @@ depends on, if any."
:group 'org-export
:version "24.4"
:package-version '(Org . "8.0")
+ :initialize 'custom-initialize-set
:set (lambda (var val)
(if (not (featurep 'ox)) (set-default var val)
;; Any back-end not required anymore (not present in VAL and not