Merge e3ca1ba2b8 into 9c014a9045

Signed-off-by: tusooa <tusooa@kazv.moe>
Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

changelogs/client_server/newsfragments/2344.clarification

@@ -0,0 +1 @@
+Clarify SAS commitment calculation for `m.key.verification.accept` messages.

data/event-schemas/schema/m.key.verification.accept.yaml

@@ -44,7 +44,8 @@ properties:
         description: |-
           The hash (encoded as unpadded base64) of the concatenation of the device's
           ephemeral public key (encoded as unpadded base64) and the canonical JSON
-          representation of the `m.key.verification.start` message.
+          representation of the `content` object of the `m.key.verification.start`
+          message.
       m.relates_to:
         $ref: m.key.verification.m.relates_to.yaml
     required: