Tree view hover issue when using polyline with focus: descendant

[flobachofner]

Version

5.5.1

Link to Minimal Reproduction

https://echarts.apache.org/examples/en/editor.html?c=tree-polyline

Steps to Reproduce

In the example chart provided, you can see the problematic behavior.

Current Behavior

When hovering a node using the regular edges with focus: descendant, all nodes and edges below are highlighted. But, if you use the edgeShape: polyline with the same focus: descendant, only the child nodes and their edges are highlighted, but the edges to the children are left out.

Expected Behavior

All edges below the hovered node should be highlighted.

Environment

No response

Any additional comments?

No response

[helgasoft]

🐛 confirmed for immediate (1st level) descendant edges on hover:

• edgeShape: 'polyline' - edges not shown, hidden as the other non-descendant ?!? Root node is an exception - immediate descendant edges are emphasized correctly.
• edgeShape: 'curve' - edges displayed as expected