Merge pull request 'don't use default distance of 11; don't overwrite distance if already entered' (#473) from logbook-entry-improvement into main

Reviewed-on: #473

frontend/main.ts

@@ -189,11 +189,6 @@ function selectBoatChange() {
 
         inputElement.value = formattedDateTime;
 
-        const distinput = <HTMLInputElement>(
-          document.querySelector("#distance_in_km")
-        );
-        distinput.value = "";
-
         const destinput = <HTMLInputElement>(
           document.querySelector("#destination")
         );
@@ -759,9 +754,11 @@ function addRelationMagic(bodyElement: HTMLElement) {
                 },
               );
 
+	      if (option && option.value !== ""){
               // Get distance
               const distance = option.getAttribute("distance");
-              if (distance) relatedField.value = distance;
+              if (distance && relatedField.value === "") relatedField.value = distance;
+	      }
             }
           });
         }