Missing "Download file" button for new users

[kingalg]

Version: 3.0.0-alpha.1
System: all desktop (on mobiles there is no downloading functionality yet)

Issue: when a new user joins a community in which bigger files have already been uploaded, this user doesn't have the option to download them (there is no "download" button). It's not a consistent behavior, but it appears frequently. It should be easy to reproduce.

Note - I add it to the current sprint but it's to be decided if we are fixing this now or in the future.

[islathehut]

My steps for reproducing

1. Create a new community
2. Connect another peer to the new community
3. While both are online send multiple files and images from one user to another, including at least 2 that are not auto downloaded
4. Start downloading one of the large files and then cancel the download
5. Create another peer and connect them to the community

What I saw was that the file I had not cancelled has no download button on the third peer but does appear on the file that was cancelled on the other peer.

Things I've noticed

• I couldn't get this issue to show up before cancelling a download
• Adding extra logs I see that the message shows up in the addMessagesSaga but not in the autoDownloadFilesSaga even though they both get triggered by the same events - they should get the same message IDs but the file with the missing button doesn't show up in the list of IDs sent to autoDownloadFilesSaga