`keyword.toggleFromSet` checked whether every target photo had the
keyword by ASCII case, while the set's buttons and the rest of the
keyword code match any letter's case: with "ÄRZTE" and "ärzte" on the
photos the button showed on, but ⌥N added the keyword (a no-op) instead
of taking it off, so it could never be toggled off.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Nathaniel LedfordandClaude Opus 5.5
f2f164f012