Ckeditor toolbar is not at the top when fullscreen.

When opening fullscreen mode, ckeditor's toolbar will get the top of the main toolbar.
It seems that this code from ckeditor.sticky-toolbar.js is causing the problem:

      function setPosition() {
        return function (event) {
          var toolBar = $('.cke_top', context);
          // Set sticky position.
          if (event.name === 'instanceReady') {
            toolBar.once('ckeditorStickyToolbarPosition').attr('style', toolBar.attr('style') + 'position: sticky; position: -webkit-sticky;');
          }
          // Align position.
          toolBar.css('top', $('body').css('padding-top'));
        };
      }

Maybe we can filter the code to work only in normal mode.