PASS poll is initialized with the scoped adapter
PASS Cancel exists on the first step
PASS Next advances from duration to dates
PASS Previous returns to the main form
PASS failure retains duration, displays an error and permits retry
PASS Next reaches invitations
PASS empty picker saves, closes and refreshes choices without losing the meeting form
PASS Cancel closes the poll
PASS late network response cannot reopen a cancelled poll
9 modal regression checks passed
