The new host details page sets the active tab by looking at the url hash, such as

"#/Repository%20sets" // sets active tab to 'Repository sets'

When there is a search query param, such as the following, it doesn't work:

"#/Repository%20sets?search=myReposet" // attempts to set active tab to 'Repository sets?search=myReposet' -- no match, so no tab is shown as selected