Git pushes and pulls from savannah often hang

[Paul Eggert]

I'm getting a lot of hangs when I push or pull commits from 
savannah.gnu.org. Although this has happened in the past, the frequency 
has increased quite a bit recently. For example, for Coreutils a few 
minutes ago:

$ git push
Enumerating objects: 5, done.
Counting objects: 100% (5/5), done.
Delta compression using up to 4 threads
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 466 bytes | 466.00 KiB/s, done.
Total 3 (delta 2), reused 0 (delta 0), pack-reused 0

and the shell command hangs indefinitely. Eventually I give up, and 
maybe type ^C and try again, and it'll work. Sometimes I need to try two 
or more times. For the command above, the push actually worked (the 
commit landed on Savannah) even though the 'git push' command was 
hanging indefinitely.

I'm seeing this at both home and work, so it's not my local network 
(though it could be a Los Angeles thing).

For this repository, 'git config -l' reports:

push.default=simple
user.name=Paul Eggert
user.email=eggert@cs.ucla.edu
user.signingkey=7E3792A9D8ACF7D633BC1588ED97E90E62AA7E34
sendemail.smtpencryption=ssl
sendemail.smtpserver=zimbra.cs.ucla.edu
sendemail.smtpuser=eggert
sendemail.smtpserverport=465
pull.ff=only
init.defaultbranch=main
core.repositoryformatversion=0
core.filemode=true
core.bare=false
core.logallrefupdates=true
remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
remote.origin.url=eggert@git.sv.gnu.org:/srv/git/coreutils.git
branch.master.remote=origin
branch.master.merge=refs/heads/master