fixup! feat(conversationfolder): use per share conversation folders

Author: miaulalala

lib/Chat/Parser/SystemMessage.php

@@ -816,19 +816,34 @@ protected function parseDeletedMessage(Message $chatMessage): void {
 	 */
 	protected function getFileFromNodeId(Room $room, ?Participant $participant, int $nodeId, bool $allowInaccurate = false): array {
 		if ($participant && $participant->getAttendee()->getActorType() === Attendee::ACTOR_USERS) {
-			$uid = $participant->getAttendee()->getActorId();
-			$userFolder = $this->rootFolder->getUserFolder($uid);
+			if ($allowInaccurate) {
+				// Lightweight lookup: search the filecache directly without setting up the user
+				// filesystem, mirroring getFileFromShare()'s use of getNodeCacheEntry().
+				// Path is intentionally inaccurate (filename only) — callers that need the full
+				// relative path must pass $allowInaccurate = false.
+				$node = $this->rootFolder->getFirstNodeById($nodeId);
+				if (!$node instanceof Node) {
+					throw new NotFoundException('File node ' . $nodeId . ' not found');
+				}
 
-			$node = $userFolder->getFirstNodeById($nodeId);
-			if (!$node instanceof Node) {
-				throw new NotFoundException('File node ' . $nodeId . ' not found for user ' . $uid);
-			}
+				$name = $node->getName();
+				$size = $node->getSize();
+				$path = $name;
+			} else {
+				$uid = $participant->getAttendee()->getActorId();
+				$userFolder = $this->rootFolder->getUserFolder($uid);
 
-			$fullPath = $node->getPath();
-			$pathSegments = explode('/', $fullPath, 4);
-			$name = $node->getName();
-			$size = $node->getSize();
-			$path = $pathSegments[3] ?? $name;
+				$node = $userFolder->getFirstNodeById($nodeId);
+				if (!$node instanceof Node) {
+					throw new NotFoundException('File node ' . $nodeId . ' not found for user ' . $uid);
+				}
+
+				$fullPath = $node->getPath();
+				$pathSegments = explode('/', $fullPath, 4);
+				$name = $node->getName();
+				$size = $node->getSize();
+				$path = $pathSegments[3] ?? $name;
+			}
 
 			$url = $this->url->linkToRouteAbsolute('files.viewcontroller.showFile', [
 				'fileid' => $node->getId(),