.recipe_coverage()'s covered_years were computed once per recipe as a
union across ALL of its components (aggregate rows included), without
excluding the component currently being tested for a gap. So a code
whose only representation in a year was its own wide-era aggregate row
satisfied its own "covered" check -- self-coverage, not the "other
components" review-doc 0.3's criterion actually specifies ("...has no
rows ... but other components do").
.recipe_coverage() now returns (recipe_id, component_code, year)
triples instead of collapsing across components, and
.recipe_component_gapped() excludes the component under test before
checking coverage, so a gap only fires when a genuinely different
sibling component has data in that year.
Adds the boundary test this gap in coverage let slip through untested:
Broward FY2011 alone, where E05/F05/G05 each report solely as their own
wide-era aggregate row and E04/F04/G04 don't exist as codes before 2012
corpus-wide, so none of the three Corrections recipes have any OTHER
component to cover them -- must produce zero suggestions. The existing
2011-2012 combined test still passes, now firing because of the 2012
E05-gapped/E04-covers pair rather than 2011's self-coverage. Updates the
header comment to state the other-component requirement explicitly.