I was getting following error when running git pull
git pull
fatal: bad object refs/heads/master 2
error: github.com:abc/xyz.git did not send all necessary objects
I tried running git gc
git gc
error: bad ref for .git/logs/HEAD 2
fatal: bad object refs/heads/master 2
fatal: failed to run repack
The fix was to remove above to files under .git
rm .git/logs/HEAD\ 2
rm .git/refs/heads/master\ 2
After that I was able to run gc and do git pull
git gc
Enumerating objects: 257, done.
Counting objects: 100% (257/257), done.
Delta compression using up to 4 threads
Compressing objects: 100% (224/224), done.
Writing objects: 100% (257/257), done.
Total 257 (delta 85), reused 0 (delta 0), pack-reused 0