Multer removes uploaded files when an exception occurs

Hi everybody,

We developed an express API to upload multiple files to S3. The API works successfully, but we've noticed a weird behavior when an exception occurs when multiple files are uploaded.

### Scenario
Suppose we upload 10 files where the 7th and 9th exceed the size limit.

### Current behavior
The API catches the error successfully, but, any file to S3 is uploaded.

### Expected behavior
Files 1,2,3,4,5,6,8,10 should be uploaded to S3 successfully, on the other hand, the Multer should inform us that files 7 and 9 have not been uploaded because of the "LIMIT_FILE_SIZE" exception.

### Environment
Node 20
Express4
AWS S3 (storage)

IMHO, this bug should be fixed asap, to avoid unexpected behavior in the future.

Thanks in advance,
Simone