From ea80baa1c06cc1e60ad09a64f9827d4ba89836da Mon Sep 17 00:00:00 2001
From: dodaa08 <dodaa08@users.noreply.github.com>
Date: Thu, 8 Jan 2026 23:13:51 +0530
Subject: [PATCH] fix: prevent same-size files from being deduplicated on
 drag-and-drop

- Changed deduplication key from file.size to file.name-file.size-file.lastModified
- Allows uploading multiple files with the same size but different names
---
 .../client/views/room/body/hooks/useFileUploadDropTarget.ts   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/apps/meteor/client/views/room/body/hooks/useFileUploadDropTarget.ts b/apps/meteor/client/views/room/body/hooks/useFileUploadDropTarget.ts
index 888e7e055080d..dc0a89db6be26 100644
--- a/apps/meteor/client/views/room/body/hooks/useFileUploadDropTarget.ts
+++ b/apps/meteor/client/views/room/body/hooks/useFileUploadDropTarget.ts
@@ -41,9 +41,9 @@ export const useFileUploadDropTarget = (): readonly [
 		const { getMimeType } = await import('../../../../../app/utils/lib/mimeTypes');
 		const getUniqueFiles = () => {
 			const uniqueFiles: File[] = [];
-			const st: Set<number> = new Set();
+			const st: Set<string> = new Set();
 			files.forEach((file) => {
-				const key = file.size;
+				const key = `${file.name}-${file.size}-${file.lastModified}`;
 				if (!st.has(key)) {
 					uniqueFiles.push(file);
 					st.add(key);