Array passed as labels option is modified by Chart.js

[frenkel]

Expected behavior

When passing an array of labels I do not expect Chart.js to modify that array, but instead use a copy of it.

Current behavior

Values in the array are different after Chart.js was run.

Reproducible sample

https://jsfiddle.net/tsrabmgo/

Optional extra steps/info to reproduce

See difference with and without the array_var line commented/uncommented.

Possible solution

Call .slice() on the value received as labels array.

Context

No response

chart.js version

latest

Browser name and version

No response

Link to your project

No response