Stuff like diffing multiple json documents and merging adds, updates and deletes where conflicts did not exist and overwriting conflicting attributes based on timestamps (latest wins). There's some reasonably good jsonpatch libraries out there that will do the heavy lifting.
Plenty of room for problems to arise, but it did not require keeping a log of updates. My use cases did not require real-time collaboration and the structure of the document was known beforehand, though.
Plenty of room for problems to arise, but it did not require keeping a log of updates. My use cases did not require real-time collaboration and the structure of the document was known beforehand, though.