Avoid small assertion when renaming internal plugins

source/backend/plugin/CarlaPluginNative.cpp

@@ -568,7 +568,7 @@ public:
             delete[] fHost.uiName;
         fHost.uiName = carla_strdup(uiName);
 
-        if (fDescriptor->dispatcher != nullptr)
+        if (fDescriptor->dispatcher != nullptr && fIsUiVisible)
             fDescriptor->dispatcher(fHandle, NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED, 0, 0, uiName, 0.0f);
 
         CarlaPlugin::setName(newName);

source/utils/CarlaJuceEvents.cpp

@@ -49,6 +49,7 @@ public:
         stopThread(2000);
 
         const ScopedLock sl(fLock);
+        CARLA_SAFE_ASSERT(fQueue.size() == 0);
         fQueue.clear();
     }