If only one Spot has meaningful location at Multi spots, it should be chosen.
I had the following multi Spots when I was using Eliom. Apparently P4 thing:
Spot: ::__32: predefined type Spot: </mnt/home/jun/.opam/system/build/eliom.3.0.3/src/server/eliom_content.ml:l60c8b1532:l60c12b1536> BYE!
ocamlspot.el chose the first Spot match and just printed the type info and did not guide me to eliom_content.ml. It should be improved.