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Wouldn' t be nice when you could get hold to the uidoc pointer of another document? Suppose the following case: you have a parent document and a child document. In thsi child you change some attribute and you want to reflect this in the main document. when the main document is in edit mode there is no problem, but when it is not, there is a problem. Of course you could save the modified attribute on the back-end. Bu t you want to see the new value on the front-end too.
When you have a pointer to the parent's uidoc available you could use this to modify the front-end of the parent.
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