Fix dxDrawModel3D not always working (returning false) (#4895)

Commit 37fc495 (February) introduced a regression that leads to
dxDrawModel3D failures (Won't work and returns false if it happens).
This fixes it.

Author: Dutchman101

Client/mods/deathmatch/logic/CClientGame.cpp

@@ -3653,6 +3653,9 @@ void CClientGame::StaticPostWorldProcessPedsAfterPreRenderHandler()
 
 void CClientGame::StaticPreFxRenderHandler()
 {
+    // RenderFadingInEntities is done at this point, so alpha entity list callbacks
+    // no longer reference CModelRenderer's queue elements.
+    g_pClientGame->GetModelRenderer()->NotifyFrameEnd();
     g_pCore->OnPreFxRender();
 }