At present, ui-search opens with the record area empty (
UISE-41), and fills it only when there is an actual query. (This is because the Codex CQL Schema presently does not support the cql.allRecords index.)
But once you have performed a search that finds some records, returning to a blank query does not clear the results of that search – which, clearly, it should.
This should work either when you hit the "clear query" button, or when we delete the last character in a query term.
I have a horrible feeling that stripes-connect may be implicated.