Some recent changes by Chris Morrison on a ticket whose number I've forgotten reminded me that the use of a reference catalog to select stars in CharacterizeImageTask has never worked (that ticket removed a bit more of the code that pretended to the job). But we still have a config option to provide a refObjLoader to CharacterizeImageTask, and moreover, many of our obs_ packages override that option, essentially because they want to make sure a particular reference catalog is anywhere one could be.
We should (in order):
- deprecate that config option (I'm not sure if we have a way to deprecate a descriptor, but we should figure one out);
- stop overriding it in any obs packages;
- (on another ticket) remove it.