Import of new users can result in users w/o permissions_users record

Overview:
While importing a large batch of new users (50k+) we encountered an issue with mod-user-import task (task restarted due to out of memory)

As a result, we found that several of the new users were created without an associated empty permissions_users record. This results in users in a state where you cannot add permissions on the ui or issue a reset password link.

https://github.com/folio-org/mod-user-import/blob/8ac0a99296a285dce9d4d5004e5f01dfeaf1deed/src/main/java/org/folio/rest/impl/UserImportAPI.java#L526

Attempting to re-import the file does not help. Because the user records are now present, the batch request is handled as an update for these users (updates do not add permissions_users Records)

Need to manually workaround by determining users w/o associated permissions_users records and adding an empty record for each user
https://s3.amazonaws.com/foliodocs/api/mod-permissions/p/permissions.html#perms_users_post

Steps to Reproduce:

1. Issue a POST request to user-import with a large number of users. Users are imported in batches of 5000 to 14000

Expected Results:
The new user records are created in a complete state with associated permissions_users records.

If not possible, should be able to re-import and update user records to include empty permissions_users record

Actual Results:
Several records are created w/o associated permissions_users records.

Additional Information:
URL:
Interested parties:
clsmith35