Sankey does not maintain node order, resulting in unnecessary crossing of lines

[pgarciaq]

Description

Similar to what was described in #815 (for flowchart diagrams) and #5464 (for Sankey with labels), Mermaid JS decided to alter the order of the G and H nodes in my Sankey diagram without labels, hence resulting in crossing lines.

Steps to reproduce

Use the following Sankey definition with the latest MermaidJS and notice how H and G unnecessarily cut each other

---
config:
  sankey:
    showValues: false
    width: 1000
---
sankey-beta

A, AG1, 10
B, AG1, 10
C, AG1, 10
D, AG1, 10
E, AG1, 10
F, AG1, 10
G, AG1, 10

AG1, AG2, 70
H, AG2, 10
I, AG2, 10

AG2, AG3, 90
J, AG3, 10
K, AG3, 10
L, AG3, 10
M, AG3, 2
...N..., AG3, 5
O, AG3, 5

AG3, DS1, 32
AG3, DS2, 32
AG3, DS3, 32
AG3, ..., 4
AG3, DSn, 32

Screenshots

Code Sample

No response

Setup

• Mermaid version: 10.9.1
• Browser and Version: CLI (mmdc) on Fedora Linux

Suggested Solutions

Mermaid should stick to the order in which nodes are defined, especially in Sankey diagrams.

Additional Context

No response