Duplicates in the candidates

[stakemori]

Hi. Thanks for writing this great program. There is an issue. In recent versions of auto-complete-mode, there is a duplicate in the return value of ac-candidates.

Please try the following code to reproduce it:

(progn (pop-to-buffer (get-buffer-create "*ac-duplicate-test*"))
       (setq ac-source-duplicate-test1
             '((candidates . (lambda () '("foo1" "foo2" "foooooooooo3"))))
             ac-source-duplicate-test2 ac-source-duplicate-test1)
       (setq ac-sources '(ac-source-duplicate-test1 ac-source-duplicate-test2))
       (auto-complete-mode 1)
       (insert "fo")
       (call-interactively 'auto-complete))

[m2ym]

Thank you for great bug report. I have fixed this problem.