I have a course setup on my moodle site which is sharing content using the publish as LTI tool. Next i have a blackboard site setup which i am using as a consumer of the lti links. On this site i have a student user which im using to access the lti content, however even though I am using the same student (with same first, last name and email address) to access the different lti links, my moodle site is creating a separate user for each lti link that i click on so i end up with many duplicates of the same user.
I have checked that "Allow accounts with same email" is set to no under authentication settings and also tried to create user accounts with the same email manually and by uploading a csv. Both fail as they should, so why does creating accounts using lti still work?
Is anyone else experiencing the same issue? or is this just a setting that i have missed somewhere?
I am using Moodle 3.1.1+ (Build: 20160817).