Currently after uploading files via ezplatform-multi-file-upload (both by selecting them separately or using drag&drop) the sub-items list isn't refreshed.

Steps to reproduce:
1. Create new content e.g. Article.
2. Select file(s) using "Choose files" button or via drag&drop.
3. Close the popup with the upload form.
4. See that recently uploaded files are not visible on the sub-items list.

After revisiting content or refreshing the view the list is properly updated. Another attempt of uploading files also ends up with the list containing new files.