diff --git a/src/lib/services/feature-toggle-service.ts b/src/lib/services/feature-toggle-service.ts
index ed0c9d2108..9fdd59d049 100644
--- a/src/lib/services/feature-toggle-service.ts
+++ b/src/lib/services/feature-toggle-service.ts
@@ -1898,7 +1898,10 @@ class FeatureToggleService {
             featureName,
             environment,
         );
-        const { newDocument } = await applyPatch(oldVariants, newVariants);
+        const { newDocument } = await applyPatch(
+            deepClone(oldVariants),
+            newVariants,
+        );
         return this.crProtectedSaveVariantsOnEnv(
             project,
             featureName,