data-custom-properties are incorrectly parsed.

[codeflow-biz]

Describe the bug
If Choices is initialized on existing html option tags, the data-custom-properties value is parsed in js with .dataset['custom-properties']. However, the .dataset keys are automatically transformed to camelCase. So the custom-properties should be accessed with .dataset['customProperties'].

To Reproduce
See the data-custom-properties example on the Choices page.

[MacBim]

@mtriff I'm facing the same issue.

The HTML :

The JS :

The console.log result :

Can this MR be merged ?

Thanks 👍

[stell]

Facing the same issue. Please merge this if possible.

[baspieter]

Same issue! Can this get merged?

[LC43]

Hi, we're seeing this issue when we need to pass extra fields to Fuse.