Playlist is patched partially if there is one with same file name

[nanikit]

What I did

I clicked playlist one click installation link.

What I expected

Normal installation.

What I got

JSON deserialization exception. I suspect this line.

The link I clicked was broken at first, so 404 page content was downloaded at first. After that the link is fixed, and reloaded but that content was shorter than previous, so incorrect file was created.