Upgrade capability always transfers user config, even if you ask it not to

I'm trying to upgrade from Nexus 2.14.18 to Nexus 3.26.1; I only want to transfer repository contents, however: our old server has a lot of bad config and unnecessary user accounts that I don't want on the new server.

However, during the upgrade process, even if I check only "Repository configuration and content" and do not check "Server configuration", the PREPARE phase still lists steps such as:

• "Upgrade configuration: security.target-privileges"
• "Upgrade configuration: security.users"
• "Upgrade configuration: security.roles", and
• "Upgrade configuration: security.user-role-mappings"

I don't want those to transfer, that's why I unchecked the "Server configuration" box in the first place. Obviously, I can just let the upgrade complete and then delete the extra users and roles after-the-fact, but, this still seems like a bug.