How to reproduce :
create job J1 with parameterized trigger to launch J2 as downstream
run J1, J2 gets triggered.
get J1 config and remove the Parameterized trigger stuff. Use update-job CLI to update the job
/job/J1/configure is updated as expected
run J1. J2 is still triggered !
save from /job/J1/configure. run J1, J2 is not triggered anymore.