* Include outlier status in `str(event)`

In places where we log event objects, knowing whether or not you're dealing
with an outlier is super useful.

* Remove duplicated logging in get_missing_events

When we process events received from get_missing_events, we log them twice
(once in `_get_missing_events_for_pdu`, and once in `on_receive_pdu`). Reduce
the duplication by removing the logging in `on_receive_pdu`, and ensuring the
call sites do sensible logging.

* log in `on_receive_pdu` when we already have the event

* Log which prev_events we are missing

* changelog

* Handle string read receipt data

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Test that we handle string read receipt data

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Add changelog for #10606

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Add docs

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Ignore malformed RRs

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Only surround hidden = ...

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Remove unnecessary argument

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

* Update changelog.d/10606.bugfix

Co-authored-by: Andrew Morgan <1342360+anoadragon453@users.noreply.github.com>

* Move /batch_send to /v2_alpha directory

As pointed out by @erikjohnston,
https://github.com/matrix-org/synapse/pull/10552#discussion_r685836624

Remove references to BuildKite in favour of GitHub Actions

Should have been more systematic with my grepping.

As opposed to only allowing the summary of spaces which the user is
already in or has world-readable visibility.

This makes the logic consistent with whether a space/room is returned
as part of a space and whether a space summary can start at a space.

And ensure that the file is checked via mypy.

Signed-off-by: Marcus Hoffmann <bubu@bubu1.eu>
Signed-off-by: Dirk Klimpel <dirk@klimpel.org>

* Only return state events that the AS passed in via state_events_at_start

As discovered by @Half-Shot in
https://github.com/matrix-org/matrix-doc/pull/2716#discussion_r684158448

Part of MSC2716

* Add changelog

* Fix changelog extension

Signed-off-by: David Robertson <david.m.robertson1@gmail.com>

This adds support for the /hierarchy endpoint, which is an
update to MSC2946. Currently this only supports rooms known
locally to the homeserver.

use PULL_REQUEST_NUMBER instead of BUILDKITE_PULL_REQUEST
remove the other user of BUILDKITE_PULL_REQUEST, namely merge_base_branch.sh

If a room which the requesting user was invited to was queried over
federation it will now properly appear in the spaces summary (instead
of being stripped out by the requesting server).

Signed-off-by: H.Shay <shaysquared@gmail.com>

When redacting, keep event fields around that maintain the historical event structure intact (MSC2716) (#10538)

* Keep event fields that maintain the historical event structure intact

Fix https://github.com/matrix-org/synapse/issues/10521

* Add changelog

* Bump room version

* Better changelog text

* Fix up room version after develop merge

Signed-off-by: Dirk Klimpel <dirk@klimpel.org>

Signed-off-by: Drew Short <warrick@sothr.com>