🐛 [BUG] 自定义图表meta配置好像没有效果

### 🐛 Bug description 自定义图表meta配置好像没有效果
如截图所示，没有做任何更改，链接如下，发现alias别名没有生效，随即测试了下formatter函数也没办法进行格式化。。。
https://g2plot.antv.antgroup.com/manual/plugin

* _Required_ **Link to minimal reproduction**:

### 📷 Step to reproduce

### 🏞 Expected result

### 🚑 Any additional [like screenshots]

* **G2Plot Version**:
* **Platform**:

Start with the plugin manual linked in the issue and reproduce the chart meta configuration using the reported alias and formatter cases. Record the G2Plot version and platform, then compare the observed output with the expected alias and formatting behavior. Done means a minimal reproduction shows both configurations taking effect, or documents the confirmed limitation.

Written by the indexing model from the issue text.