Step to reproduce: 1. `add n/Mary p/98765432 e/mary123@gmail.com m/CS2100 m/CS2030S T11 B09`  Result: no space between CS2100 and CS2030S <!--session: 1635494520381-f82c7867-fe60-474c-893b-d45e97e03efe--> <!--Version: Web v3.4.1-->