when I create a group assignment selecting a set of existing teams, I distribute to the students the link that GitHub Classroom generates automatically.
When the students open the link they land on a page that asks them to accept the assignment but immediately after they are prompted to create a new team in order to undertake the assignment.
This behaviour of the application is not what I was expecting: since the students already blenog to teams, they should be asked to EITHER create a new team OR choose one of the teams they already belong to.
Actually since the instructor selects a set of existing teams for the group assignment I would even expect that the students are not prompted for any choice: if a student X accepts the assignment and he/she belongs to one of the teams selected by the instructor, say team Y, the system should create the new repo and assign it to team Y giving access to student X and its teammates.
Anyone else experiencing this strange behaviour? Is it a recognised bug or an intended pattern of use?