Fix crash when not clearing Online Platform in Editor before hot-reload

#1873

Source/Engine/Online/Online.cpp

@@ -4,6 +4,9 @@
 #include "IOnlinePlatform.h"
 #include "Engine/Core/Log.h"
 #include "Engine/Engine/EngineService.h"
+#if USE_EDITOR
+#include "Engine/Scripting/Scripting.h"
+#endif
 #include "Engine/Scripting/ScriptingObject.h"
 
 class OnlineService : public EngineService
@@ -25,6 +28,16 @@ IOnlinePlatform* Online::Platform = nullptr;
 Action Online::PlatformChanged;
 OnlineService OnlineServiceInstance;
 
+#if USE_EDITOR
+
+void OnOnlineScriptsReloading()
+{
+    // Dispose any active platform
+    Online::Initialize(nullptr);
+}
+
+#endif
+
 bool Online::Initialize(IOnlinePlatform* platform)
 {
     if (Platform == platform)
@@ -34,6 +47,9 @@ bool Online::Initialize(IOnlinePlatform* platform)
 
     if (Platform)
     {
+#if USE_EDITOR
+        Scripting::ScriptsReloading.Unbind(OnOnlineScriptsReloading);
+#endif
         Platform->Deinitialize();
     }
     Platform = platform;
@@ -45,6 +61,9 @@ bool Online::Initialize(IOnlinePlatform* platform)
             LOG(Error, "Failed to initialize online platform.");
             return true;
         }
+#if USE_EDITOR
+        Scripting::ScriptsReloading.Bind(OnOnlineScriptsReloading);
+#endif
     }
 
     return false;