Get elements with same value on other tags

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10

I don’t remember what I was doing then, but now I don’t get anything on overpass turbo. I used this snippet:

[out:xml][timeout:90];
{{geocodeArea:Pääkaupunkiseutu}}->.searchArea;
(
  relation(area.searchArea)["type"="destination_sign"]["destination"]["note"](if: (t["destination"] == t["note"]));
);
out meta;

I remember there is also relations with keys destination = note.