A legacy prefix that names the same job as a prefix in
hvti_taxonomy, so a census counts its files under that
prefix. pm folds into lm: a review of the job catalog on
2026-09-11 found that the propensity work filed as pm belongs with
the logistic models in lm.
Details
The map is stored, never derived. A fold is a judgement about what a legacy
name means, and a rule that inferred it from spelling would also fold names
that merely look alike. Every name is absent from hvti_taxonomy()
and every value is present in it; the tests pin both.
See also
job_files, which applies it.