Auto Groups allows creation of groups with identical names

If you use auto groups and perform the same operation twice, it lets you can creates a group with the same title as the previous group. (Even though it identifies that a group with this roster or role already exists) It should either prevent this from happening or rename the group (to something like Instructor-1) if there actually is a reason for it. Creating groups in the normal workflow comes up with an error if you try to use the same name. This causes problems in some tools still like Samigo SAM-1010.

Tested in Chrome but I don't think the checkbox is disabled.