Actual - the command "event -n Party -sd 2023-10-25 -ed 2023-10-27 -l MBS -a 11 -a 12 -a 13" works and adds event to the last attendee in the command (13 in this case), ignoring the other attendees(11 and 12 in this case). The output after running this command is attached below -

Expected - An error message should be displayed because the command format is wrong because only one attribute for attendee is allowed according to the UG.
Actual - the command "event -n Party -sd 2023-10-25 -ed 2023-10-27 -l MBS -a 11 -a 12 -a 13" works and adds event to the last attendee in the command (13 in this case), ignoring the other attendees(11 and 12 in this case). The output after running this command is attached below -
Expected - An error message should be displayed because the command format is wrong because only one attribute for attendee is allowed according to the UG.