Adjust ChangesetIds to correctly convey optional changeset

Author: CarsonF

src/components/changeset/dto/changeset.args.ts

@@ -11,8 +11,8 @@ export class ChangesetIds {
   @IdField()
   id: ID;
 
-  @IdField({ nullable: true })
-  changeset: ID;
+  @IdField({ optional: true })
+  changeset?: ID;
 }
 
 export type IdsAndView = ChangesetIds & { view: ObjectView };
@@ -25,10 +25,10 @@ export class ObjectViewPipe implements PipeTransform {
   constructor(private readonly validator: ValidationPipe) {}
 
   async transform(input: ChangesetIds) {
-    const { id, changeset } = await this.validator.transform(input, {
+    const { id, changeset } = (await this.validator.transform(input, {
       metatype: ChangesetIds,
       type: 'body',
-    });
+    })) as ChangesetIds;
     const view: ObjectView = changeset ? { changeset } : { active: true };
     return { id, changeset, view };
   }