contract attachment deletion

Summary:

We are trying to delete contract attachments as part of post refresh of our lower environment as we have confidential documents attached in the contracts. As per checking the contracts, attachments are already been removed.

We would like to confirm if:

1.) The Attachments (actual documents/files) are being delete.

or

2.) The link to the contract is only removed but the documents still exists somewhere.

Ideally, we would like that the documents/files to be deleted in the lower environment as they are confidential

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):