d0f3edfc

By: Tom Sydney Kerckhove <syd@cs-syd.eu>

ical-recurrence: chunk golden occurrences by unfolded line

Write an empty line for a property that is absent, which is what
parseEventOccurrence already reads as absent, so that every occurrence
occupies exactly two lines and none of them shift.

Unfold with parseUnfoldedLines before chunking, so that a property whose
content line is folded over several raw lines is still one chunk element.

The existing golden files are unaffected: every occurrence in them has
both a start and an end, and none of their lines are long enough to be
folded.

Timeline