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Implement MSC3818: copy room type on upgrade #12786

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1 change: 1 addition & 0 deletions changelog.d/12786.feature
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Implement [MSC 3818: Copy room type on upgrade](https://github.com/matrix-org/matrix-spec-proposals/pull/3818).
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10 changes: 7 additions & 3 deletions synapse/handlers/room.py
Original file line number Diff line number Diff line change
Expand Up @@ -469,13 +469,17 @@ async def clone_existing_room(
(EventTypes.PowerLevels, ""),
]

# If the old room was a space, copy over the room type and the rooms in
# the space.
# Copy the room type as per MSC3818 https://github.com/matrix-org/matrix-spec-proposals/pull/3818.
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if old_room_create_event.content.get(EventContentFields.ROOM_TYPE) is not None:
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creation_content[
EventContentFields.ROOM_TYPE
] = old_room_create_event.content.get(EventContentFields.ROOM_TYPE)

# If the old room was a space, copy over the rooms in the space.
if (
old_room_create_event.content.get(EventContentFields.ROOM_TYPE)
== RoomTypes.SPACE
):
creation_content[EventContentFields.ROOM_TYPE] = RoomTypes.SPACE
types_to_copy.append((EventTypes.SpaceChild, None))

old_room_state_ids = await self.store.get_filtered_current_state_ids(
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