[OAK-1742] DocumentNodeStore on MongoDB returns incorrect diff for merge commits

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.20
• Fix Version/s: 1.0
• Component/s: core, mongomk
• Assignee: Marcel Reutegger
• Reporter: Marcel Reutegger
• Created: 17/Apr/14 09:45
• Updated: 04/Jun/14 10:16
• Resolved: 17/Apr/14 13:20

Description

A diff on a merge commit will return an empty jsop with DocumentNodeStore running on MongoDB. This is a regression introduced by changes done for OAK-1555. Merge commits must not add a diff entry to the cache because they are always empty.