TD-3644 Correcting the where condition for IsSupervisorDelegateExistAndReturnId

Author: rshrirohit

DigitalLearningSolutions.Data/DataServices/SupervisorService.cs

@@ -1139,7 +1139,7 @@ LEFT JOIN UserCentreDetails ucd
                 @"
                    SELECT ID
                         FROM    SupervisorDelegates sd
-                        WHERE (sd.SupervisorAdminID = @supervisorAdminID OR @supervisorAdminID = 0) AND (sd.DelegateUserID = @delegateUserId OR @delegateUserID = 0 OR DelegateEmail = @delegateEmail)
+                        WHERE (sd.SupervisorAdminID = @supervisorAdminID OR @supervisorAdminID = 0) AND (sd.DelegateUserID = @delegateUserId OR @delegateUserID = 0) AND DelegateEmail = @delegateEmail
                         ORDER BY ID DESC
                         ",
                 new