circusctl unable to set selected options

[vdraceil]

https://github.com/circus-tent/circus/blob/master/circus/watcher.py#L1081
set_opt does not handle bool options like "respawn" , "singleton" , etc.

I deployed my code to pre-production env (default respawn=True) and then I wanted to experiment with respawn=False as the processes get spawned out of control (because the celery children are not getting stopped when the parent bash script dies)
but I wasnt able to just update the config (runs in a kubernetes container) and re-test .. so had to use circusctl , but unfortunately I wasnt able to set respawn=False and test roght away

➜ circusctl set worker-1 respawn True
ok

➜ circusctl get worker-1 respawn
respawn: False

if the setting update needs a config reload or something, at least an err message would be great vs the misleading "ok" as if the update was successful

Same happens for "singleton" as well
well basically, it'll happen for all left out options in watcher.py::set_opt