=== modified file 'lisp/simple.el'
*** lisp/simple.el	2014-01-12 04:00:03 +0000
--- lisp/simple.el	2014-01-13 11:10:41 +0000
***************
*** 7694,7700 ****
                 (customize-save-variable ',varimp-sym
                                          (cdr (assoc-string val ,varalt-sym))))))
           (if ,varimp-sym
!              (funcall ,varimp-sym)
             (message ,(format "No implementation selected for command `%s'"
                               command-name)))))))
  
--- 7694,7700 ----
                 (customize-save-variable ',varimp-sym
                                          (cdr (assoc-string val ,varalt-sym))))))
           (if ,varimp-sym
!              (call-interactively ,varimp-sym)
             (message ,(format "No implementation selected for command `%s'"
                               command-name)))))))