Ausweis Speichern und Startmonat

src/components/Ausweis/Verbrauch.svelte

@@ -65,8 +65,8 @@
 		fuelMap[fuel[0]].push(fuel[1]);
 	}
 
-	let month = ausweis.startdatum?.getMonth() || null;
-	let year = ausweis.startdatum?.getFullYear() || null;
+	let month = ausweis.startdatum?.getMonth();
+	let year = ausweis.startdatum?.getFullYear();
 
 	$: {
 		if (typeof month === "number" && typeof year === "number") {
@@ -158,11 +158,11 @@ xl:grid-cols-3 xl:gap-x-8 xl:gap-y-8
 					{#each Array.from(availableDates.reduce((a, c) => {
 							a.add(c.month);
 							return a;
-						}, new Set())) as month}
+						}, new Set())) as availableMonth}
 						<option
-							value={month}
-							selected={ausweis.startdatum?.getMonth() === month}
-							>{monthNames[month]}</option
+							value={availableMonth}
+							selected={month === availableMonth}
+							>{monthNames[availableMonth]}</option
 						>
 					{/each}
 				{/if}