The Octave Day of Ss. Peter and Paul (Jul 6) uses common:
common-of-apostles (the plural id, distinct from the singular
common-of-an-apostle most single-apostle feasts use), but no
matins-hymn-common-of-apostles.yml or matins-invitatory-common-of-
apostles.yml existed, so it fell through to the plain ferial default for
both. Duplicated the singular Common's identical source text under the
plural id, matching the existing convention already used for that
Common's Lauds hymn/capitulum/responsory/versicle files.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LGsATZvfnpQ81HQuoF5JuL
