the same as typing t f89b9f1b 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 f89b9f1b-a828-466a-b80b-3c0ca486fcf1 e