!!! Overview 
In [DirXML] when the [DirXML Engine] examines a complete transaction and decides that the transaction results in no change, it throws the transaction away. 

Although this is not a [DirXML Error], it is more of a return code. 

For example, if you have a client that removes an attribute value and then adds the same attribute value back, that transaction results in no change so the engine will discard it. 

!! More Information 
There might be more information for this subject on one of the following: 
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