When a user belongs to projects it remains member even if it is removed.

I did the following test :

• Invite a new member to a project by email from member module 
• Remove the user (from Back office admin interface)

=> The user is still displayed in members list of the project, its member profile can also be retreived and found through workspace search engine.

It would be necessary to remove user from projects + remove its profile

See screenshot (David 99)