[xwiki-users] (my)xwiki user registration strangeness

Hi all, The day after upgrading http://selfbus.myxwiki.org to 8.2.1, I found a handful of spammer accounts that were created as local users in the wiki. The wiki was configured to * Only an admin can send invitations to join this wiki * Both global and local users are available in the wiki Interestingly this still allows new users to be registered. Also strange is that the registration captcha does not show as it should also. The wiki is now set to allow only global users, so there is no immediate problem. I only wanted to report my observations, as it looks like a bug in xwiki to me. Kind regards, Stefan