Background color for admin's m2m multi-select "selected" rows is broken in Edge

[cjs59]

The change in https://code.djangoproject.com/ticket/35809 has made the selected item hard to read in Microsoft Edge, as it displays as white text on a yellow background when the m2m widget is not in focus. Chrome and Firefox both display it as black text on a yellow background. When the user clicks on the m2m widget, it changes to use the browser's built-in colours: white text on dark grey for Edge, and white text on blue for Chrome/Firefox.

I am attaching screenshots to show the focused and unfocused colours in both Edge and Chrome.

Adding the following to a custom CSS file fixes Edge so the unfocused widget renders the same as in Chrome:

form .aligned select option:checked {
        color: var(--body-fg);
}