apache · ChimdumebiNebolisa · Jan 16, 2026
diff --git a/dist/echarts.common.js b/dist/echarts.common.js
diff --git a/dist/echarts.common.js.map b/dist/echarts.common.js.map
diff --git a/dist/echarts.common.min.js b/dist/echarts.common.min.js
diff --git a/dist/echarts.js b/dist/echarts.js
diff --git a/dist/echarts.js.map b/dist/echarts.js.map
diff --git a/dist/echarts.min.js b/dist/echarts.min.js
diff --git a/dist/echarts.simple.js b/dist/echarts.simple.js
diff --git a/dist/echarts.simple.js.map b/dist/echarts.simple.js.map
diff --git a/dist/echarts.simple.min.js b/dist/echarts.simple.min.js
diff --git a/src/model/Series.ts b/src/model/Series.ts
@@ -67,9 +67,10 @@ const inner = modelUtil.makeInner<{
 }, SeriesModel>();
 
 function getSelectionKey(data: SeriesData, dataIndex: number): string {
-    return data.getName(dataIndex) || data.getId(dataIndex);
+    return data.getId(dataIndex);
 }
 
+
 export const SERIES_UNIVERSAL_TRANSITION_PROP = '__universalTransitionEnabled';
 
 interface SeriesModel {

diff --git a/test/treemap-select-21480.html b/test/treemap-select-21480.html