backend/hafas: also combine first walking leg

src/backend/hafas/api/refresh_journey.nim

@@ -21,4 +21,5 @@ proc refreshJourney*(params: RefreshJourneyParams): Future[Journey] {.async.} =
   }
 
   let data = await request(req)
+  echo pretty data
   return parseJourneysResponse(data, true).journeys[0]

src/backend/hafas/parse/journey.nim

@@ -13,7 +13,7 @@ proc mkParseJourney*(common: CommonData): proc =
     result.lastUpdated = common.timeStamp
 
     # combine walking legs
-    var i = 0
+    var i = -1
     var firstWalking = -1
     while true:
       inc(i)
@@ -21,8 +21,6 @@ proc mkParseJourney*(common: CommonData): proc =
       if result.legs[i].isWalking:
         if firstWalking == -1:
           firstWalking = i
-          continue
-
         else:
           result.legs[firstWalking].arrival = result.legs[i].arrival
           result.legs[firstWalking].distance.get += result.legs[i].distance.get