I'm looking for a way that users can only see unassigned issues and issues assigned to them in a project. But administrators should be able to see all issues.
We are working with several freelancers on one project. Each freelancer works independently on his issues, but should also be able to accept new unassigned issues. As soon as a freelancer has taken over an unassigned issue, this issue should no longer be visible to other freelancers, since it is no longer relevant to them.