AJAX focus does not work with multiple forms of the same type

The implemented test case is based on the existing test case which is disabled via 📌 [random test failure] Re-enable AjaxTest::testAjaxFocus() Needs work . So I'm not sure whether that new test case will be flaky as well...

Please take a look :)

tgauges → changed the visibility of the branch 3485655-3046447-ajax-focus-duplicate-forms to hidden.

Seems to include code from 🐛 Restore cursor position on #ajax 'input' or 'keyup' event Postponed: needs info , if this issue is dependent on that then options are

1. 🐛 Restore cursor position on #ajax 'input' or 'keyup' event Postponed: needs info is closed and try to get everything in this one
2. This issue is postponed till the other lands (recommend)

Thanks.