The rdf4j repository materialiser removes existing members outside of the named graph

[pj-cegeka]

Describe the bug
When using the rdf4j repository materialiser to write to a named graph, it writes to this named graph but removes members over the entire repository.

To Reproduce
Use the following config for the output component:
outputs: - name: be.vlaanderen.informatievlaanderen.ldes.ldi.RepositoryMaterialiser config: sparql-host: http://rdf4j-server:8080/rdf4j-server repository-id: test named-graph: http://named
And have another named graph in the same repository containing triples with the same subject.

Expected behavior
Only triples in the chosen named graph are removed.

[jobulcke]

Resolved in #571