fix(tree): fix invalid opacity configuration for symbolPath.

src/chart/helper/Symbol.js

@@ -238,7 +238,7 @@ symbolProto._updateCommon = function (data, idx, symbolSize, seriesScope) {
     }
     else {
         symbolPath.setStyle({
-            opacity: null,
+            opacity: 1,
             shadowBlur: null,
             shadowOffsetX: null,
             shadowOffsetY: null,
@@ -394,4 +394,4 @@ symbolProto.fadeOut = function (cb, opt) {
 
 zrUtil.inherits(SymbolClz, graphic.Group);
 
-export default SymbolClz;
\ No newline at end of file
+export default SymbolClz;

src/chart/tree/TreeView.js

@@ -375,12 +375,6 @@ function updateNode(data, dataIndex, symbolEl, group, seriesModel, seriesScope)
     if (isInit) {
         symbolEl = new SymbolClz(data, dataIndex, seriesScope);
         symbolEl.attr('position', [sourceOldLayout.x, sourceOldLayout.y]);
-
-        // Fix #12279.
-        // if the type of symbol is image,
-        // update symbol's data immediately but not wait until the next update rendering.
-        var symbolType = symbolEl.getSymbolPath().type;
-        symbolType === 'image' && symbolEl.updateData(data, dataIndex, seriesScope);
     }
     else {
         symbolEl.updateData(data, dataIndex, seriesScope);