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I managed by Drag and Drop to create a circular reference.
A is child of B and B is child of A.
I would expect, that this is validated on the client - i.e. it should not be possible - in the same way as it is not possible to drop an item on itself.
A is child of B and B is child of A.
I would expect, that this is validated on the client - i.e. it should not be possible - in the same way as it is not possible to drop an item on itself.