[Bug]: Inconsistent copy behavior between Object storage and local storage

[susnux]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

If you copy a shared file on local storage the copied file has dropped all permissions, meaning you are the owner and have all permissions.
On object storage if you copy a shared file, the permissions are preserved, meaning if you could only view a file you can also only view the copied file.

Steps to reproduce

1. Share a file and set permissions to view only
2. As the person with who you shared the file: Copy the file
3. See that on local storage you can reshare the copied file and on object storage you can not.

Expected behavior

Consistent behavior (one of both).

Installation method

None

Nextcloud Server version

master

Operating system

None

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

No response

List of activated Apps

No response

Nextcloud Signing status

No response

Nextcloud Logs

No response

Additional info

No response