Issue Summary

JQL assignee in membersOf("") doesn't work return the updated value once the user is removed from the specified group. 

Steps to Reproduce

1. Create a group ex:ABC.
2. Ensure you have atleast one work item assigned.
3. Run the JQL assignee in membersOf("ABC") and it results 0 work items.
4. Add your user account to the group ex: ABC.
5. Run the JQL assignee in membersOf("ABC"), it will return the workitem assigned to you. 
6. Remove your user account from the group (ABC).
7. Run the JQL assignee in membersOf("ABC") and it still results the same. The update doesn't get synced. 

Expected Results

Once the user removed from the group the JQL assignee in membersOf("") should return the updated value. 

Actual Results

The JQL assignee in membersOf("") displays the same results as before.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available