the same as typing t 6b9ef21f modify project:… due:… …. an empty box clears that field.
this is a demo. the data is invented, it is shared with everyone else looking, and it is wiped every night. don't put anything real in it. what is this?
$ tracker 6b9ef21f-c1e6-4a31-a0f5-10aa1cf25d94 e