[Bug 48257] New: Apt https://dl.winehq.org/wine-builds/ubuntu/ reports suspect downloads

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48257

Bug ID: 48257
           Summary: Apt https://dl.winehq.org/wine-builds/ubuntu/ reports
                    suspect downloads
           Product: Wine
           Version: 4.0.3
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Using Ubuntu 19.10 (eoan), `apt upgrade` reports:

```
E: Failed to fetch
https://dl.winehq.org/wine-builds/ubuntu/dists/eoan/main/binary-amd64/wine-s...
 File has unexpected size (1143728 != 1143068). Mirror sync in progress? [IP:
151.101.182.217 443]
   Hashes of expected file:
    - SHA256:9976a91748c5b9f5e2f7a640ead868ba1db21cb95bcbb0179c384220dd5447c3
    - SHA1:a6e62be563c58b4db41e4ea05156697a35704048 [weak]
    - MD5Sum:6479a3583e8f4c0ef6965001acfbe57e [weak]
    - Filesize:1143068 [weak]
```

I waited a day to file this issue: perhaps it resolved itself?  However, it is
still present.  Further, I already have 4.0.3 installed, so this is surprising.

Could there be, perhaps, a security issue?  I'm unsure how to proceed.