From 183e1c16cabbd01bfc42b1a37b7fdbab5fe8b173 Mon Sep 17 00:00:00 2001
From: Veronika Tsygankova <veronika.amilonn@gmail.com>
Date: Fri, 31 Jul 2026 09:49:34 +0300
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---
 web/src/components/Stages/AddStagesModal.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/src/components/Stages/AddStagesModal.jsx b/web/src/components/Stages/AddStagesModal.jsx
index 511a9d0..9898b11 100644
--- a/web/src/components/Stages/AddStagesModal.jsx
+++ b/web/src/components/Stages/AddStagesModal.jsx
@@ -140,7 +140,7 @@ export const AddStagesModal = ({
       return acc;
     }, []);
     if (!isSelect) {
-      setSelectedColumns(prev => ([...prev, ...leafCols]));
+      setSelectedColumns(prev => ([...new Set([...prev, ...leafCols])]));
     }
     else {
       setSelectedColumns(prev => (prev.filter(c => !leafCols.includes(c))));