merge: use the current resolver for quotes - #524 (!536)

View MR for information: https://activitypub.software/TransFem-org/Sharkey/-/merge_requests/536

Approved-by: Amelia Yukii <amelia.yukii@shourai.de>
Approved-by: Marie <marie@kaifa.ch>

packages/backend/src/core/NoteEditService.ts

@@ -299,6 +299,10 @@ export class NoteEditService implements OnApplicationShutdown {
 		}
 
 		if (data.renote) {
+			if (data.renote.id === oldnote.id) {
+				throw new Error("A note can't renote itself");
+			}
+
 			switch (data.renote.visibility) {
 				case 'public':
 					// public noteは無条件にrenote可能