After drag a file incorrectly all transfer information disappears

How to reproduce:

• go to webui
• start a new Nuxeo upload with Aspera
• edit the transfer title and the common metadata
• drag and drop a file in the correct field
• drag and drop a file but this time outside the drop zone(incorrectly)
• new page with file preview opens
• backspace to previous action
• all transfer information disappears (including correctly uploaded file)
• go to transfers tab(no transfer)
• refresh page(all things appear again)

upgraded from minor to major because this makes the user think he lost everything and to start another process

check video in attachment