Extend datastructure ruleset for the whole form recomputation

For a specific use case, where we need to recompute values at child nodes, where the formula is dependent on child node siblings.

possible ways:

  • Allow to recompute not just one entity, but also it’s child nodes and sub-child nodes.

  • Or to get not just a data slice based on a current node, but get also sibling nodes (full document)

  • or have both - new rule type with getting the whole data, having specified merge type