fn ensure_path_user(
nodes: &mut Vec<Value>,
seen_nodes: &mut HashSet<String>,
detail: &DiagnosticsRoomDetail,
user: &DiagnosticsUserView,
selected: bool,
)fn ensure_path_user(
nodes: &mut Vec<Value>,
seen_nodes: &mut HashSet<String>,
detail: &DiagnosticsRoomDetail,
user: &DiagnosticsUserView,
selected: bool,
)