loop to direct links (and reverse) transformation after node drag-and-drop in Sankey diagram

Links mode does not change from direct to loop or reverse after node drag-and-drop. The same thing happens if initial nodes position is changed with XY coordinates. It appears that the mode is fixed after initial alignment and that it cannot be changed despite changes in XY coordinates causing some loops to be broken and others to be created. HTML and Javascript environment.

https://plotly.com/python/sankey-diagram/

Expected behaviour: Links mode (loop to direct and reverse) is redefined after (or during) each change of node position (drag-and-drop or setting XY coordinates)

PS: this tool is amazing, I discovered it after using Google's оne, and its flexibility is incredible

从 https://plotly.com/python/sankey-diagram/ 中的 Sankey 图示例开始，在 HTML/JavaScript 环境中通过拖动节点并更改其 XY 坐标来复现该问题。验证每次位置更改后都会重新计算 links mode，包括创建或断开循环时。