[Pushed] Allow users to manage own orphan attachments they have uploaded

[Ben]

Hi,

Thank you for your report. We have pushed this issue to our Github repository for further analysis where you can track our commits and progress with fixing this bug. Discussions regarding this bug may also take place there too.

Follow this link to visit the issue on Github: https://github.com/mybb/mybb/issues/4084

Thanks for contributing to MyBB!

Regards,
The MyBB Group

[effone]

What Omar G stated appears much more logical to me.
A PR should be created considering those...