Failure in VSS pre and post restore is ignored

In the source code, after pre and post restore, CheckSelectedWriterStatus() is called to check status of writers. I've copied snippet of code here for prerestore -

            // Issue a PreRestore event to the writers
            m_vssClient.PreRestore();

            // Execute the optional custom command between PreRestore and PostRestore
            try
            {
                // Check selected writer status
                m_vssClient.CheckSelectedWriterStatus();

As per the microsoft documentation, after pre-restore, we need to verify writer status - https://learn.microsoft.com/en-us/windows/win32/vss/overview-of-preparing-for-restore

Here is code of CheckSelectedWriterStatus -

// Check the status for all selected writers
void VssClient::CheckSelectedWriterStatus()
{
    FunctionTracer ft(DBG_INFO);

    if ((m_dwContext & VSS_VOLSNAP_ATTR_NO_WRITERS) != 0)
        return;

Here, the if condition is true in case of restore and hence checking writer status is actually skipped.
If I comment out this if condition and try to perform restore which is supposed to fail in prerestore, it actually fails.

Start at the pre- and post-restore call sites for VssClient::CheckSelectedWriterStatus(), then read that function alongside the linked Microsoft VSS restore documentation. Reproduce the reported restore scenario where a writer failure is ignored and compare it with the condition removed. Done means writer-status failures during restore are detected and the appropriate failure is reported.