Add support for repository updates via @Aggregation [DATAMONGO-2522]

**[Christoph Strobl](https://jira.spring.io/secure/ViewProfile.jspa?name=cstrobl)** opened **[DATAMONGO-2522](https://jira.spring.io/browse/DATAMONGO-2522?redirect=false)** and commented


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No further details from [DATAMONGO-2522](https://jira.spring.io/browse/DATAMONGO-2522?redirect=false)