Merge 1d7846b0f9 into 48051c3450

changelogs/client_server/newsfragments/2357.clarification

@@ -1 +1,11 @@
-The `prev_batch` token from `/sync` can be used as the `from` value in `GET /rooms/{roomId}/relations/{eventId}`.
+Fixes a typo in `/rooms/{roomId}/relations/{eventId}`.
+
+The specification says about the `from` request query parameter:
+
+> The pagination token to start returning results from. If not supplied, results start at the most recent topological event known to the server.
+>
+> Can be a `next_batch` or `prev_batch` token from a previous call, or a returned `start` token from `/messages`, or a `next_batch` token from `/sync`.
+
+The last part is wrong. It should be:
+
+> … or a `prev_batch` token from `/sync`.