[PR] Pass the field diff to the field handlers, not the obj diff

[kopf-archiver]

A pull request by nolar at 2019-04-04 21:43:28+00:00
Original URL: zalando-incubator/kopf#22
Merged by nolar at 2019-04-12 13:53:14+00:00

The diff field for the @kopf.on.field handler contains the whole obj diff, but should contain the field diff: i.e. only the records related to the handled field, with the field names relative to the field's root, not to the object's root.

Issue : #21