[nongnu] elpa/helm a8ef7a391e 2/2: Prevent adding duplicates while adjusting metadata

[ELPA Syncer]

branch: elpa/helm
commit a8ef7a391e64c261c9b8ce758abc0e92a51fcfeb
Author: Thierry Volpiatto <thievol@posteo.net>
Commit: Thierry Volpiatto <thievol@posteo.net>

    Prevent adding duplicates while adjusting metadata
    
    This is done for the helm style fn but seems the same problem happens
    with flex adjust metadata fn.
---
 helm-mode.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/helm-mode.el b/helm-mode.el
index 52d1aef7ec..eea2e57b22 100644
--- a/helm-mode.el
+++ b/helm-mode.el
@@ -2499,7 +2499,9 @@ Currently does nothing."
          . ,compose-helm-sort-fn)
         (cycle-sort-function
          . ,compose-helm-sort-fn)
-        ,@(cdr metadata)))))
+        ,@(cl-loop for (elm . val) in (cdr metadata)
+                   unless (memq elm '(display-sort-function 
cycle-sort-function))
+                   collect (cons elm val))))))
 (put 'helm 'completion--adjust-metadata 'helm-completion--adjust-metadata)
 
 ;; Helm-flex style.