Reader adds a suggestion on page opac-suggestions.pl?op=add (as today).
But when she clicks on “validate”, Koha searches the catalog using the elements it has in the suggestion form. It also searches the pending suggestions.
The search should be focused rather that wide, title being searched on title index rather than on a catch-all index: we don't want to have the patron go through any extra screen/click if that's not necessary.
Case #1 : results = 0. User moves on to opac-suggestions.pl (nothing changes here for the user)
Case #2 : results > 0.
If she clicks on “confirm suggestion”, she moves on to opac-suggestion.pl.