This shows how to make Discovery item facets appear on the XMLUI community-list page.
In dspace-xmlui/src/main/resources/aspects/Discovery/sitemap.xmap:
- uncomment <map:match pattern="community-list">
- comment out <map:transform type="CommunityBrowser">, thus leaving <map:transform type="SidebarFacetsTransformer"/>
Example: https://github.com/DSpace/DSpace/pull/159/files
An alternative possible solution was suggested where this page would not list item facets (all facets we have as of DSpace 4.0 are item metadata facets), but collection metadata facets (which we currently don't have, but see Metadata For All, https://github.com/DSpace/DSpace/pull/12).