[Bug] Tree chart: expanded/collapsed state of parent nodes is reset on zoom
- Dominant language
- TypeScript
- Stars
- 67.3k
- Forks
- 19.8k
- Avg merge
- 11d 14h
- Merged PRs (30d)
- 8
Description
### Version
5.4.3
### Link to Minimal Reproduction
https://jsfiddle.net/undeletable/zrau5scd/
### Steps to Reproduce
1. Create tree chart.
2. Expand/collapse some nodes, so that overall state is different from the initial one.
3. Change chart zoom.
### Current Behavior
Expanded/collapsed state of nodes is reset to the initial one. Obviously, that occurs because change of `series` value call triggers chart rerender. Note that this is the case even if reference to `series` remains unchanged (see https://jsfiddle.net/undeletable/z8cvfg23/).
### Expected Behavior
According to https://github.com/apache/echarts/issues/16743, `dataZoom` property is not supported for tree charts. So the only way to change zoom is to change `series.zoom` property in options. Obviously, this triggers chart rerender, but as a user I'd expect chart state to be persisted if only zoom changes - no matter if it's done using current way, or if any analog for `dataZoom` is introduced.
### Environment
```markdown
- OS:Linux Mint 19.3
- Browser:Google Chrome 119.0.6045.123
- Framework:Vanilla JS, React
```
### Any additional comments?
_No response_
Contributor guide
Assessment
This issue has not been assessed yet.