Patch update for syncronization

Development
21

Upsert is the old behavior. You want Create.

22

Great, I’m so excited. But please look to the end of migration.
When I do with your new flag, I get element, but without content.
Example what I do
A: {
a:1,
b:2,
}

B: {
a:2,
}
After sync I get this structure for B: { a:2, b: ‘’}

23

The Create option only creates new entities. It does not create a merge or so.