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Previously, `openNodes` and `searchNodes` only returned relations where BOTH endpoints were in the result set (using `&&`). This silently dropped all relations to/from nodes outside the set — making it impossible to discover a node's connections without calling `read_graph` and filtering the entire dataset client-side. Changed the filter from `&&` to `||` so that any relation with at least one endpoint in the result set is included. This matches the expected graph-query semantics: when you open a node, you should see all its edges, not just edges to other opened nodes. Fixes #3137 Tests updated and new cases added covering: - Outgoing relations to nodes not in the open set - Incoming relations from nodes not in the open set - Relations connected to a single opened node - searchNodes returning outgoing relations to unmatched entities Co-authored-by: Cursor <cursoragent@cursor.com>