We don't use that feature at all as far as I am aware.
I also find that it complicates any metadata handling (especially the validation
I would like to add in the near future, T3965), and probably does not match semantics
intended by SWORD (merging occurs on PUT requests, as we don't implement PATCH)
thus the duplication here.
Note also that this is installed through the Dockerfile.cron during the image build.