Filter out edits from other senders in history

We currently don't support edits from other senders, but the server may not
filter them, so we filter them here on the client.

src/client.js

@@ -5413,6 +5413,9 @@ async function(roomId, eventId, relationType, eventType, opts = {}) {
         }));
         events = events.filter(e => e.getType() === eventType);
     }
+    if (originalEvent && relationType === "m.replace") {
+        events = events.filter(e => e.getSender() === originalEvent.getSender());
+    }
     return {
         originalEvent,
         events,