Switched value = otherValue to assign the actual nodes after setting the...

Switched value = otherValue to assign the actual nodes after setting the reference (so that tmp = foo['bar']; tmp = other; is the same as foo['bar'] = other;)

include/yaml-cpp/value/impl.h

@@ -122,6 +122,7 @@ namespace YAML
 	{
 		m_pNode->set_ref(*rhs.m_pNode);
 		m_pMemory->merge(*rhs.m_pMemory);
+		m_pNode = rhs.m_pNode;
 	}
 
 	// size/iterator