Error in Google workflow batch ingest when adding items with duplicate files

[lagoan]

Describe the bug
When creating a batch ingest using the Google workflow and we have multiple items (described in rows) with the same file name, the system will create the batch ingest job and will finish, but only one item will in fact have the file attached to it and the user will not know about this error.

To Reproduce
Steps to reproduce the behavior:

1. Log in as admin
2. Click on admin from user drop down menu
3. Click on 'Batch ingests'
4. Click on 'New batch ingest'
5. Enter title
6. Add spreadsheet with duplicate file names in different rows (see attached image)
7. Add required files
8. Click on 'Create batch ingest'
9. Go to each item from the ingest and see how an error occurs when trying to access the duplicate entry of the file.

Expected behavior
New batch ingest should stop and indicate an error when multiple items list the same file name.

Screenshots