Portal: Button has undefined data in event handler

[Yoruba]

Steps

Click on 'button with popup'

Expected Result

Data to be defined in event handler

Actual Result

Data is undefined

Version

0.75.1

Testcase

Codepen with code

Click on 'button with popup'

undefined

Click on 'button'

{icon: "add", children: "button", as: "button", onClick: ƒ}

[layershifter]

@Yoruba Thanks for report, will be fixed by #2234.