mix deps.get yields: error: RPC failed; result=22, HTTP code = 404 fatal: The remote end hung up unexpectedly

mix deps.get fails on CentOS Linux release 7.8.2003 (Core).

[pleroma@li205-95 pleroma]$ MIX_ENV=prod mix deps.get
* Updating concurrent_limiter (https://git.pleroma.social/pleroma/elixir-libraries/concurrent_limiter)
error: RPC failed; result=22, HTTP code = 404
fatal: The remote end hung up unexpectedly
** (Mix) Command "git --git-dir=.git fetch --force --quiet --progress" failed
[pleroma@li205-95 pleroma]$ pwd
/home/pleroma/pleroma
[pleroma@li205-95 pleroma]$

Work-around was to add .git to the URL path for the concurrent_limiter in mix.exs

-       git: "https://git.pleroma.social/pleroma/elixir-libraries/concurrent_limiter",
+       git: "https://git.pleroma.social/pleroma/elixir-libraries/concurrent_limiter.git",