Christoph Strobl

Thank you for getting in touch and taking the time to craft the PR. There is a potential benefit of `UNLINK` when working with large data structures as you mentioned....

Thank you for getting in touch. This is due to the conversion of `_id` values that are valid `ObjectIds` into the such by the mapping layer. The [documentation](https://docs.spring.io/spring-data/mongodb/reference/mongodb/template-crud-operations.html#mongo-template.id-handling) has a...

Sounds like a request for core FW.

Thank you for reporting - it would help us if you could provide a complete [minimal sample](https://stackoverflow.com/help/minimal-reproducible-example) (something that we can unzip or git clone, build, and deploy) that reproduces...

thanks for reporting. looks like we need a dedicated aggregation mapper that can deal with field references instead of piping values through the converter as the `QueryMapper` does.

That's an interesting one since the map is empty in the db. So the `ReferenceLookupDelegate` needs to check on the property type for better insight into what to return instead...

Thank you @gbaso for raising awareness. Unfortunately we did not previously deprecate the `background` flag. Since the option is silently ignored by the server we may opt for deprecating the...

thanks for reporting and the reproducer. looks like we need a dedicated aggregation mapper that can deal with field references instead of piping values through the converter as the QueryMapper...

Thank you @shollander for getting in touch - it would help if you could please take the time to provide a complete [minimal sample](https://stackoverflow.com/help/minimal-reproducible-example) (something that we can unzip or...

Thank you for getting in touch - If you'd like us to spend some time investigating, please take the time to provide a complete [minimal sample](https://stackoverflow.com/help/minimal-reproducible-example) (something that we can...