Duplicate datasets from two organizations

[FuhuXia]

Same datasets are harvest twice in two organizations, for example

https://catalog.data.gov/dataset/nndss-table-ii-invasive-pneumococcal-to-legionellosis-79d5f
https://catalog.data.gov/dataset/nndss-table-ii-invasive-pneumococcal-to-legionellosis-f6b5a

there are 785 found between organization hhs-gov and centers-for-disease-control-and-prevention.

$ curl -s "https://catalog.data.gov/api/action/package_search?fq=(organization:centers-for-disease-control-and-prevention%20OR%20organization:hhs-gov)&facet.field=[%22identifier%22]&facet.limit=-1&facet.mincount=2" | jq '.result.facets.identifier | length'

785

Sketch

[Notes or a checklist reflecting our understanding of the selected approach]

[FuhuXia]

close this one since #4073 has better description,