Re: error: refs/heads/master does not point to a valid object!

[Gregory Heytings]

> since today I get the following git error when running git pull in my 
> emacs clone where the master branch is checked out.

Yes, something wrong is happening on Savannah.  I have remote.origin.prune 
set to true, and today a git pull pruned the master branch:

* [pruned] origin/master
refs/remotes/origin/HEAD has become dangling!

Yesterday a push showed some warning, but I don't remember the details 
anymore.  It was something about garbage collection and "too many 
unreachable objects".