Changing visibility of a forked parent should warn user that forks will be unlinked
Due to gitlab-com/gl-infra/production#2889 (closed), we switched gitlab-org/gitlab
from a public project to an internal one.
Unfortunately this unlinked 2000+ forks from this parent, causing us to recover this data in gitlab-com/gl-infra/production#2890 (closed).
I suggest we have a confirmation that warns a user that X number of projects will be unlinked.