Comment 36 for bug 972077

I'm also affected by this (a Hashicorp repo):

```
Get:14 https://apt.releases.hashicorp.com jammy/main i386 Packages [31,3 kB]
Err:14 https://apt.releases.hashicorp.com jammy/main i386 Packages
  File has unexpected size (31295 != 31290). Mirror sync in progress? [IP: 18.173.5.94 443]
  Hashes of expected file:
   - Filesize:31290 [weak]
   - SHA256:a1aba716abdbf9f2e3bc13d25734ff9fcc58a399698795ebc98f7cec76146d2e
   - SHA1:20e1b9792e678e5223d1387e4e5effaf5a4ca24f [weak]
   - MD5Sum:647502cff7f79ac8a4641b6519696b30 [weak]
  Release file created at: Wed, 03 May 2023 21:28:51 +0000
```

and in the summary:

```
Reading package lists... Done
E: Failed to fetch https://apt.releases.hashicorp.com/dists/jammy/main/binary-i386/Packages.bz2 File has unexpected size (31295 != 31290). Mirror sync in progress? [IP: 18.173.5.94 443]
   Hashes of expected file:
    - Filesize:31290 [weak]
    - SHA256:a1aba716abdbf9f2e3bc13d25734ff9fcc58a399698795ebc98f7cec76146d2e
    - SHA1:20e1b9792e678e5223d1387e4e5effaf5a4ca24f [weak]
    - MD5Sum:647502cff7f79ac8a4641b6519696b30 [weak]
   Release file created at: Wed, 03 May 2023 21:28:51 +0000
E: Some index files failed to download. They have been ignored, or old ones used instead.
```