Re: [PATCH 0/10] MR7329: windowscodecs/tests: Add some query tests with the Unknown reader.

[Esme Povirk (＠madewokherd)]

Esme Povirk (@madewokherd) commented about dlls/windowscodecs/tests/metadata.c:
> - UINT count, len;
> - HRESULT hr;
> -
> - hr = CoCreateInstance(&CLSID_WICImagingFactory, NULL, CLSCTX_INPROC_SERVER,
> -
>        &IID_IWICComponentFactory, (void **)&factory);
> - ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> -
> - /* Using query reader created with CreateQueryReaderFromBlockReader().
> -
> -
>   It's not allowed to create the writer for top level reader. */
> - hr = CoCreateInstance(&CLSID_WICApp1MetadataReader, NULL, CLSCTX_INPROC_SERVER,
> -
>        &IID_IWICMetadataReader, (void **)&reader);
> - ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
> -
> - load_stream(reader, (const char *)&app1_data, sizeof(app1_data), 0);
> - hr = create_query_reader_from_metadata_reader(factory, reader, &GUID_ContainerFormatJpeg, &query_reader);

I don't think this is released before `query_reader` is assigned NULL below.