A bug in synchronizing the renamed files

Hello,

I found a serious bug in the synchronize method, which prevents me from continuing using WinSCP.

The used command:


Problem description:

Files, having equal names, don't synchronize.

How to reproduce the problem:

1) I have 6 images in the current directory with the names image1.png, image2.png, image3.png, image4.png, image5.png and image6.png.

2) I'm making synchronization:


3) Ok

4) I remove image2.png on a local computer and restore the numeration from 1 to 5.

5) I already have 5 images in the current directory with the names image1.png, image2.png, image3.png, image4.png and image5.png

6) I'm making synchronization:

7) There's a bug on a server: the image image2.png remained the same, the image image6.png was just removed instead.

Can I change the incorrect behavior of is it a real bug and I have to wait until it's fixed?

I'm not sure I understand the problem.
What did you expect WinSCP to do in this situation?
Please attach a full session log file showing the problem (using the latest version of WinSCP).

I expect the image2.png to overwrite, but this does not happen.

Attached screen and log.

Both your versions of image2.png have the same timestamp:

. 2019-01-18 11:14:58.202 Local file '.\image2.png' [1979-12-31T21:00:00.000Z] [49011] included to synchronization
...
. 2019-01-18 11:14:58.206 image2.png;-;11801;1979-12-31T21:00:00.000Z;3;"" [0];"" [0];---------;0

With the default settings, WinSCP consider these to be the same.

You would need to add "size" to the comparison to consider these files different:
https://winscp.net/eng/docs/scriptcommand_synchronize#criteria

You should also consider using mirror mode: -mirror.
https://winscp.net/eng/docs/task_synchronize_full#mode

This command did not help. Attached a new log.
With the --mirror also does not work.

With -criteria=size also does not sync.

Hello Martin,

Thank you for your help in solving the problem.

either and size criteria are really working. In my latest tests Windows Explorer set me back. It is not able to distinguish substituted files and cashes pictures' preview. Actual files are recorded on a disk at that time.