Multiple jPicker-table in Linear Gradient color picker

[HiXiSi]

It's an issue with the online example: https://svgedit.netlify.app/editor/index.html
In the linear/raditial gradient color picker, you can modify the start/end color by double clicking the waterdrop icon. It will open a picker with an id of jPicker-table.
But if you open the jPicker-table more than once, the older ones will display again.