TODS-I602
run_events.txt writes the same event_type or job_type two or more ways, differing only in capitalization or in the separator between words. The spec lets a producer use any values but asks for them to be consistent, and a consumer that matches on the literal value reads the spellings as unrelated types. Advisory only: two spellings can be two genuinely different values.
Interpretation: advisory: two values count as one value spelled differently when they match after case-folding and removing spaces, hyphens, and underscores
Spec reference: https://tods-transit.org/spec/#run_eventstxt