tiebreak ordered spaces sensibly
@@ -115,11 +115,14 @@ relationship can be expressed in one of two ways:
The `order` key is a string which is used to provide a default ordering of
siblings in the room list. (Rooms are sorted based on a lexicographic
- ordering of the Unicode codepoints of the characters in `order` values;
- rooms with no `order` come last. `order`s which are not strings, or do not
- consist solely of ascii characters in the range `\x20` (space) to `\x7F`
- (`~`), or consist of more than 50 characters, are forbidden and should be
- ignored if received.)
+ ordering of the Unicode codepoints of the characters in `order` values.
+ Rooms with no `order` come last, in ascending numeric order of the
+ `origin_server_ts` of their `m.room.create` events, or ascending
+ lexicographic order of their `room_id`s in case of equal
+ `origin_server_ts`. `order`s which are not strings, or do not consist
+ solely of ascii characters in the range `\x20` (space) to `\x7F` (`~`), or
+ consist of more than 50 characters, are forbidden and should be ignored if
+ received.)
2. Separately, rooms can claim parents via the `m.space.parent` state
event.
