fix(server): 自分のノートをお気に入りに登録しても実績解除される問題を修正

packages/backend/src/server/api/endpoints/notes/favorites/create.ts

@@ -5,8 +5,8 @@ import { IdService } from '@/core/IdService.js';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { GetterService } from '@/server/api/GetterService.js';
 import { DI } from '@/di-symbols.js';
-import { ApiError } from '../../../error.js';
 import { AchievementService } from '@/core/AchievementService.js';
+import { ApiError } from '../../../error.js';
 
 export const meta = {
 	tags: ['notes', 'favorites'],
@@ -79,7 +79,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				userId: me.id,
 			});
 
-			if (note.userHost == null) {
+			if (note.userHost == null && note.userId !== me.id) {
 				this.achievementService.create(note.userId, 'myNoteFavorited1');
 			}
 		});