the same as typing t c3a399a0 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 c3a399a0-ffca-4c19-9d3d-3375d559a7e4 e