batchByOwnFields

Partitions contexts by the fields selected directly on the node and invokes resolve once for each group.

Nested selections do not affect the grouping key. Group.selections retains any-member navigation over the complete selections in the group.

For example, suppose three Product contexts have these selections:

context 1: details { summary }
context 2: details { rating }
context 3: name

The resulting groups are:

group 1:
  key: { Product.details }
  contexts: [context 1, context 2]
  selections:
    details {
      summary
      rating
    }

group 2:
  key: { Product.name }
  contexts: [context 3]
  selections:
    name