newState signature must be partial to work with unions.

Author: ciscoheat

src/lib/client/superForm.ts

@@ -191,7 +191,7 @@ type SuperFormErrors<T extends Record<string, unknown>> = {
 type ResetOptions<T extends Record<string, unknown>> = {
 	keepMessage?: boolean;
 	data?: Partial<T>;
-	newState?: T;
+	newState?: Partial<T>;
 	id?: string;
 };
 
@@ -924,7 +924,7 @@ export function superForm<
 			posted?: boolean;
 		} = {}
 	) {
-		if (opts.newState) initialForm.data = opts.newState;
+		if (opts.newState) initialForm.data = { ...initialForm.data, ...opts.newState };
 
 		const resetData = clone(initialForm);
 		resetData.data = { ...resetData.data, ...opts.data };

src/routes/(v2)/v2/allow-files/+page.svelte

@@ -22,7 +22,7 @@
 <form method="POST" enctype="multipart/form-data" use:enhance>
 	<label>
 		Upload file, max 10 Kb: <input
-			on:input={(e) => ($form.avatar = e.currentTarget.files?.item(0) as File)}
+			on:input={(e) => ($form.avatar = e.currentTarget.files?.item(0) ?? null)}
 			accept="image/png, image/jpeg"
 			name="avatar"
 			type="file"

src/routes/(v2)/v2/allow-files/schema.ts

@@ -4,4 +4,5 @@ export const schema = z.object({
 	avatar: z
 		.instanceof(File, { message: 'Please upload a file.' })
 		.refine((f) => f.size < 10_000, 'Max 10Kb upload size.')
+		.nullable()
 });