set initial asset loaded state to not loaded

Engine/source/assets/assetBase.cpp

@@ -76,6 +76,7 @@ mAssetInitialized(false)
    mInternalName = StringTable->EmptyString();
    mClassName = StringTable->EmptyString();
    mSuperClassName = StringTable->EmptyString();
+   mLoadedState = AssetErrCode::NotLoaded;
 }
 
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