No error message displayed when maximum number of files are uploaded

I just ran into the same issue where no error message is shown when reaching the maximum number of allowed files. The solution for me was essentially the patch mentioned above. However, this fix is not included in the current 8.x-2.x-dev branch, so @abu-zakham comment appears to be incorrect.

This part needs to be removed:

dropzoneInstance.on('maxfilesexceeded', function () {
  var rejectedFiles = dropzoneInstance.getRejectedFiles();
    for (var i = 0; i < rejectedFiles.length; i++) {
      dropzoneInstance.removeFile(rejectedFiles[i]);
    }
});