fix note import

cmd/dumps/main.go

@@ -85,13 +85,13 @@ func main() {
 		}
 
 		if s.Notes != "" {
-			ts.Notes = []models.SignupNote{
-				{
-					Author:  "IMPORT",
-					Content: s.Notes,
-				},
+			note := models.SignupNote{
+				Created:  time.Now(),
+				Author:   "IMPORT",
+				Content:  s.Notes,
+				SignupID: ts.ID,
 			}
-			if err = ts.RefreshNotes(db); err != nil {
+			if err = note.Insert(db); err != nil {
 				confirmContinue(fmt.Sprintf("%#v led to error %s; continue?", ts, err.Error()))
 			}
 		}