Saving an image from a browser to a mounted Ouisync filesystem creates zero sized files (Linux)

[inetic]

To reproduce:

• Run ouisync-app on Linux
• Create a repository
• Open Firefox (happens with chromium as well) and navigate to some site with images in it
• Right click on one of the images, navigate to the mounted repository and hit the Save button
• Navigate to the mounted repository (CLI or with a file explorer)
• The file for the saved image is in the repository but it's size is zero

So far I tried to look into our fuse/vfs code, but don't see any errors from there. I also tried to mount an example filesystem from fuser (the package we use for mounting), there it works. Finally I tried to download Firefox sources to find out which particular command makes it fail, but there it worked.

I'm getting out of ideas how to pinpoint where the bug is, so I'll park it for now.

[inetic]

Should now be fixed by https://github.com/equalitie/ouisync/commit/208ab1f0cab403a4bf67e65df0e0cf483a0d2d49