Progressive Enhancement: After single-file upload, Uploader reverts to multi-file version

When the Uploader is used in single-file mode: After a "save" the view switches automatically back to the multi-file version.

To reproduce:
1) http://build.fluidproject.org/infusion/components/uploader/html/Uploader.html
or
http://build.fluidproject.org:8080/sakai-imagegallery2-web/site/AddImages/
2) Switch to "standard single-file Uploader"
3) Browse and select a single file
4) Click the "Save" button

The view automatically reverts to the multi-file interface.