Goals

When migrating to EmbeddedObject two cases have to be handled:

• Objects without backlinks (orphaned objects)
• Objects with more than one backlink

This is necessary due to the nature of {{EmbeddedObject}}s always belonging to one and only one other object.

As explained in https://github.com/realm/realm-dotnet/issues/2394 and https://github.com/realm/realm-dotnet/discussions/2393 this cannot be achieved while migrating because EmbeddedObject cannot be iterated over / queried since it's not a standalone object.

This will also unlock https://github.com/realm/realm-dotnet/issues/2394.

Expected Results

• Orphaned objects get deleted automatically when a flag for deleting them is set as part of the migration block.
• Objects with multiple backlinks will be duplicated so that every object linking to them gets their own version.