Multiline does not work since v11

[pinage404]

Description

Multiline are not suported anymore

Until 10.9.3, it was ok

Starting since 11.0.0, multiline are not supported anymore

Even in the last release 11.4.0

Even the develop branch

Steps to reproduce

1. add a \n in a label
2. observe that the newline is not rendered, \n is displayed as plain text

Screenshots

No response

Code Sample

flowchart TD
    A[Christmas] -->|Get money| B(Go shopping)
    B --> C{Let me\nthink}
    C -->|One| D[Laptop]
    C -->|Two| E[iPhone]
    C -->|Three| F[fa:fa-car Car]

Setup

• Mermaid version: 11.0.0 and above
• Browser and Version: Zen 1.0.1-a.18 (Firefox 132.0.1) (64 bits)

Suggested Solutions

No response

Additional Context

No response

[daveyarwood]

I noticed this as well in Notion:

Whereas up until recently, \n inside a label was rendered as a newline.

EDIT: That second MultipleLines line isn't really necessary. I took it out and the behavior is the same -- the issue is still reproduced.