Flag Action Ajax Link "focus" command jumps to wrong flag, if there are multiple on the page

Problem/Motivation

\src\Controller\ActionLinkController.php has the following code:

    // Put the focus back on the link.
    $focus = new InvokeCommand($selector . '>a', 'focus');
    $response->addCommand($focus);

to focus the clicked flag after clicking.

The request-response for example looks like this:

    {
        "command": "invoke",
        "selector": ".js-flag-likes-100170\u003Ea",
        "method": "focus",
        "args": []
    },

Sadly this logic is broken, if there is more than one flag with that class on the page.

We for example have two "Like" buttons on the page. One on the top and one at the end of the page, which isn't really untypical for articles.

The command never knows, which of these flag links on the page was clicked and so always focuses the last one. In our case the page then jumps to the bottom.

Steps to reproduce

1. Add the same flag link with AJAX (at least) twice on the page
2. See page focus jumping to the last one of them, when clicking any

Expected:
No jumping of the page

Proposed resolution

The question is, if this focus is really needed, because the user already must have the element in the focus and doesn't expect the page to jump anyway.

So I'd vote to simply remove it, seems like over-optimization?

Remaining tasks

User interface changes

Remove focus after Ajax Flag Link click

API changes

None

Data model changes

None