Reconnect to current channel after disconnect

public/channelSync.js

@@ -357,7 +357,11 @@
       // Use faster retry (2s) if never connected, slower (3s) if disconnected after connecting
       if (M.wantSync) {
         const delay = wasConnected ? 3000 : 2000;
-        setTimeout(() => M.connectChannel(id), delay);
+        setTimeout(() => {
+          if (M.ws) return;
+          const reconnectId = M.currentChannelId || M.getSavedChannelId() || id;
+          M.connectChannel(reconnectId);
+        }, delay);
       }
     };