Issue Summary

User has access to Groups and has used groups in the past to create schedules.
Currently, Trying to make any new schedules with groups, will result with an error: "cannot save sch[nameOfSchedule]. New rotation responder team(s)/escalation(s) introduce(s) a loop."

This occurs even when there is no loop found/starting from scratch.

Steps to Reproduce

1. You will need to have an account that has 'groups' available
2. Try adding a group to a rotation

Expected Results

User should be able to add group into schedule successfully, in the same manner you would add a user.

Actual Results

Error: "cannot save sch[nameOfSchedule]. New rotation responder team(s)/escalation(s) introduce(s) a loop"

Workaround

Point to group in escalation