Expanding replaces the whole screen, so it is a place you can be, and every other place in the app can be backed out of. Without this, back left the Month view entirely and coming back found it still expanded. Declared deeper than CalendarHost's view-stack handler, which is what makes it take precedence while it is enabled. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>