Mention dropdown doesn't show non-project members
I noticed this on the current 8.11 RC on GitLab.com just now on the Support Forum. A user created an issue. I tried to @ mention them but their name would not show in the autocomplete dropdown. I had to copy it from the link at the top. The dropdown should allow selecting a non-project member that created the issue. I think this is a regression but tbh, I don't know.