Copy/move to WebDAV folder results in empty files

### Problem description

Hi! I tried setting up a rule to copy/move files from certain local folders to WebDAV mount and it looks like the files got copied but corrupted, showing 0 bytes not having actual content, just names.

I assume it has something to do with the fact that the destination is WebDAV share, however it showed up in the UI so I assumed it was supported.
Any idea what could be the issue? Are there any logs I can share or anything that could help?
Thank you.

### Reproduction steps

Here's how I configured the rule - the idea is to copy/move all files into certain folder to a remote WebDAV mount.
Source:

Destination:

Here's how the destination was picked - SAF:

### Expected behavior

Files are copied and moved properly to the destination folder (WebDAV share)

### Screenshots and logs

_No response_

### Additional context

_No response_