3.x版本中区间柱状图无法展示tooltip

- **F2 Version**:3.x

官网demo中的区间是y轴。如果x轴是区间的话（区间是连续的），tooltip不会出现，怎样配置才能出现。
```javascript
// 测试数据
const data = [
{
x: [1, 2],
y: 1,
},
{
x: [2, 3],
y: 2,
},
]
```

No source file, test, or reproduction link is named. Start by reproducing the issue in F2 3.x with the supplied JavaScript data, using a continuous interval on the x axis and checking the tooltip entry point. Done means determining whether an existing configuration enables the tooltip or documenting the required behavior and adding coverage for this case.

Written by the indexing model from the issue text.