A "slash" folder is added automatically when uploading to S3 #2912
Description
Browsing the motionEye clips stored on S3 I noticed they are all inside a "folder" simply named /.
After looking at some packet capture I can see motionEye is requesting this URL: mys3provider.com/bucketname//motionEye/2024-01-08/2024-01-08_13/2024-01-08_13-12-51.mp4?uploadId=3a48a31e-c030-46e3-b54c-e8aa6a07e703&partNumber=1, as you can see there are two slashes after the bucket's name causing this weird behavior.
The issue with this strange behavior is that clients such Rclone don't work properly with these key names and it returns this error:
$ rclone lsd remote:bucketname
2024/01/08 13:23:27 ERROR : : Entry doesn't belong in directory "" (same as directory) - ignoring
Looking at the pull requests I saw #2760 and I'm wondering if it could fix this issue.