UseProxyIndirection() and Breaking Relationships

I am encountering a problem when using proxy indirection on a one to one mapping. I set up proxy indirection by calling useProxyIndirection() on the mapping at run time. I am not using the ValueHolderInterface.
I have two objects related by a one to one mapping, object A and object B. Object A contains a reference to object B. I wish to break the relationship between the two objects. I do this by setting object A's reference to null.
If proxy indirection is not used the database field is set to null and the relationship is broken. However if I call useProxyIndirection() on the mapping the database field is not updated and the relationship remains.
Is there a certain method or technique that must be used to break a relationship when using proxy indirection?
Any suggestions are appreciated.

Setting the relationship to null should work for proxy indirection. Check that you are using the latest TopLink version, or contact support to report this problem. You might also want to try first accessing the relationship before setting the value to null.
In general I would suggest usage of value-holders over proxy indirection.

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