Running an import mapping to update relationships between entities and ocurrences, using merge_on_idno_with_replace as the existingRecordPolicy
Non-existent relationships are created, with interstitial fields correctly
Existent relationships are updated (or so the log says), but interstitial fields are not updated/created (despite the log saying they were created)
This behavior is a hang-over from the pre-interstitial days. We don't revisit existing relationships to save time, which was an ok thing to do when there was nothing to update in a relationship. We'll look to fix this soon.