improvement: feature flags for sled, rocksdb

src/client_server/membership.rs

@@ -621,7 +621,7 @@ async fn join_room_by_id_helper(
             &pdu,
             utils::to_canonical_object(&pdu).expect("Pdu is valid canonical object"),
             count,
-            pdu_id.into(),
+            &pdu_id,
             &[pdu.event_id.clone()],
             db,
         )?;