Summary

Space import fails due to the username of a user is different in the instances.

Environment

• Cloud to Cloud space import.

Steps to Reproduce

1. In Confluence A, create a user with username like testuser
2. Restrict a page with the user in Step 1
3. Export the space
4. Use the same email address to signup for Confluence B (so that the user will get created with username 'admin')
5. Import the backup into Confluence B

Expected Results

The import is done without any issue

Actual Results

It shows error in importing the space.

Application logs:

ERROR: duplicate key value violates unique constraint "cp_unique_user"
  Detail: Key (cps_id, cp_type, username)=(431424995, View, <hash>) already exists.

Workaround

Contact Atlassian support in fixing the incosistency in the username