MADescription beHidden don't update model

> Hi,
>
> i have a model with some descriptions.
>
> One of it, descriptionMap, is set with beHidden property because i think to use it only for update the relative cache description into descriptionContainer.
>
> The relative code is :
>
> ^( super descriptionContainer )
>        addCondition:[ : memento|
>
>                 memento cache at: self descriptionOK
>
>                         ifTrue: [      memento cache   at: self descriptionMap put:  'xyz'.      true ]
>
>                        ifFalse:[ false ].
>
>                                ]
>        labelled:  'Error is not ok;
>        yourself
>
>
>
> The cache is right update.
>
> The problem is to update the model relative to the descriptionMap cache.
>
> When confirm the form other instances model is right update but descriptionMap not.
>
> Any idea?
>
> Thanks,
>
>        Dario
>
>
>
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