Possible thread-safety bug in LoggingEvent

From imspecting the code there appears to be a race condition if two threads call LoggingEvent.LookupProperty concurrently. One thread may call CreateCompositeProperties and the other might access m_compositeProperties before it is fully created.

public object LookupProperty(string key)
{
if (m_data.Properties != null)

{ return m_data.Properties[key]; }

if (m_compositeProperties == null)

{ CreateCompositeProperties(); }

return m_compositeProperties[key];
}

private void CreateCompositeProperties()
{
m_compositeProperties = new CompositeProperties();

if (m_eventProperties != null)

{ m_compositeProperties.Add(m_eventProperties); }

... etc