mmm... as we have fixed the definition of the isDiscoverable flag (see https://jira.duraspace.org/browse/DS-1711) that should not have longer any impact on the link creation. It needs to be fixed also here
https://github.com/EKT/DSpace/blob/d0aa915791a715d8c34a1bc29c42f4dae0704c4a/dspace-jspui/src/main/java/org/dspace/app/webui/jsptag/BrowseListTag.java#L486
and the private method removed
https://github.com/EKT/DSpace/blob/d0aa915791a715d8c34a1bc29c42f4dae0704c4a/dspace-jspui/src/main/java/org/dspace/app/webui/jsptag/BrowseListTag.java#L909