'git gc auto' didn't trigger on large reflog

[Markus Gerstel <2025@uxp.de>]

Hi everyone,

I was looking on a machine that does not normally get any attention. On 
this machine a daily cronjob has been running

     git checkout -q master && git fetch && git reset --hard 
origin/master && git gc --auto

for 6 years. The git directory now contains a .git/logs/HEAD file of 
180MB with 823921 lines.

The repo config contains

[core]
         repositoryformatversion = 0
         filemode = true
         bare = false
         logallrefupdates = true

and the system git version is 2.36.6.

I can't change the git version -or install my own one- so I can't tell 
if this has been fixed since.
A manual git gc fixed everything, so I amended the cronjob to just do 
that instead.

I was just slightly surprised (and amused) because I expected 'git gc 
--auto' to pick this up, so I thought I'd share this with you.

Thanks

-Markus