Custom Tooltip rendering incorrect dates

[apsitos]

This may be a bug related to #4067 , but I haven't combed through the source code to confirm.

I am creating a custom tooltip for a line chart to display in the format "Date: percentage". When I use the default tooltip x and y properties, the date formats correctly. When I use the tooltip: custom property, the date being used isn't part of my initial dataset. (There are 11 items in the w.globals.labels array when I only passed in four items to the series.)

Code Sandbox: https://codesandbox.io/p/sandbox/react-basic-example-forked-vt6tkg

Date shown here should be 7/22/2024
Incorrect:

Correct:

Does anyone have any suggestions to fix this?
(edited to update sandbox link)