Empty string can be the name of the user

[quinnyyy]

By typing space + nusmods link you can add empty string as user. Then when you quit the application and reopen it, the application will crash

This can also be achieved doing any whitespace characters before the nusmods link for example space + tab + tab + nusmods link will do the same thing

[nus-pe-bot]

Your response not required for this bug as the team has accepted the bug as it is.