Fix copy-paste of rich resource text

* We need to cache to the QString text on demand, which requires a context
  potentially sooner than paint/etc time.

qrenderdoc/Windows/LogView.cpp

@@ -121,7 +121,7 @@ public:
             case Column_Message:
             {
               QVariant desc = msg.Message;
-              RichResourceTextInitialise(desc);
+              RichResourceTextInitialise(desc, &m_Viewer->m_Ctx);
               return desc;
             }
             default: break;