Focusing back on CKEditor inserts the token in the wrong field

There is a edge case were this issue is still occuring in an initial state, but this can be resolved when the editor:attached event lands in core, see: ✨ Trigger event when Text Editor is attached Needs work

We can then do:

$(document).on('editor:attached', function () {
  if (Drupal.CKEditor5Instances) {
    Drupal.CKEditor5Instances.forEach(function (editor) {
      editor.editing.view.document.on('change:isFocused', (event, data, isFocused) => {
        if (isFocused) {
          drupalSettings.tokenFocusedField = false;
          drupalSettings.tokenFocusedCkeditor5 = editor;
        }
      });
    })
  }
});

Work for me, but it need a bit of debug.

I have a page for a client where both simple textareas and ckeditor textareas are used for different fields in different paragraphs and if I clicked first on a simple textarea field and then on ckeditor textarea field, the focus would not work and Token Browser would not insert toke values.

If I closed the token browser window and clicked again the ckeditor textarea, then it would work, but the first time after a page load, it does not.

I switched the checks in the MR (first check for tokenFocusedCkeditor5 and then for tokenFocusedField) and now it works without a problem.