fix RIDER-42516

Author: krasnotsvetov

resharper/resharper-unity/src/Rider/UnityEditorProtocol.cs

@@ -156,7 +156,8 @@ private void CreateProtocols(FileSystemPath protocolInstancePath)
 
                 myLogger.Info("Creating SocketWire with port = {0}", protocolInstance.Port);
                 var wire = new SocketWire.Client(lifetime, myDispatcher, protocolInstance.Port, "UnityClient");
-
+                wire.BackwardsCompatibleWireFormat = true;
+                    
                 var protocol = new Protocol("UnityEditorPlugin", new Serializers(),
                     new Identities(IdKind.Client), myDispatcher, wire, lifetime);
 

unity/EditorPlugin/NonUnity/RiderProtocolController.cs

@@ -22,6 +22,8 @@ public RiderProtocolController(IScheduler mainThreadScheduler, Lifetime lifetime
         ourLogger.Verbose("Start ControllerTask...");
 
         Wire = new SocketWire.Server(lifetime, mainThreadScheduler, null, "UnityServer");
+        Wire.BackwardsCompatibleWireFormat = true;
+        
         ourLogger.Verbose($"Created SocketWire with port = {Wire.Port}");
       }
       catch (Exception ex)