fix(zod): don't include @@validate rules when generating schema for validating update input

Fixes #1563

Author: ymc9

packages/schema/src/plugins/zod/generator.ts

@@ -464,9 +464,6 @@ export const ${upperCaseFirst(model.name)}PrismaCreateSchema = ${prismaCreateSch
                     .join(',\n')}
     })`;
             prismaUpdateSchema = this.makePartial(prismaUpdateSchema);
-            if (refineFuncName) {
-                prismaUpdateSchema = `${refineFuncName}(${prismaUpdateSchema})`;
-            }
             writer.writeLine(
                 `
 /**

tests/regression/tests/issue-1563.test.ts

@@ -0,0 +1,30 @@
+import { loadSchema } from '@zenstackhq/testtools';
+
+describe('issue 1563', () => {
+    it('regression', async () => {
+        const { enhance } = await loadSchema(
+            `
+        model ModelA {
+            id String @id @default(cuid())
+            ref ModelB[]
+        }
+
+        model ModelB {
+            id String @id @default(cuid())
+            ref ModelA? @relation(fields: [refId], references: [id])
+            refId String?
+
+            @@validate(refId != null, "refId must be set")
+        }
+        `,
+            { enhancements: ['validation'] }
+        );
+
+        const db = enhance();
+
+        const a = await db.modelA.create({ data: {} });
+        const b = await db.modelB.create({ data: { refId: a.id } });
+
+        await expect(db.modelB.update({ where: { id: b.id }, data: { refId: a.id } })).toResolveTruthy();
+    });
+});