Affected Version: master (commit 709627f8)
What steps will reproduce the problem?
1. Create a change for a project with restricted read access
2. Go to the change screen and start typing the name of a user who can't see the change in the assignee input box.
What is the expected output?
Users which can't see the change are not suggested as assignee.
What do you see instead?
User that can't see the change is suggested as assignee.
Please provide any additional information below.
Trying to add the user that can't see the change as assignee fails (as expected since the change is not visible to that user).