fix bug

src/features/projectCompareDetail/ScoreRateCompare.vue

@@ -336,7 +336,7 @@ function rangeSegementsLine() {
 
 const hasRangeSegementsComparison = $computed(() => {
   const r = courses
-    .filter((c) => c.rangeConfig)
+    .filter((c) => c.rangeConfig ?? { rangeConfig: Math.random() })
     .map((c) => JSON.stringify(c.rangeConfig));
 
   const s = new Set(r);