git pull
remote: Azure Repos
remote: Found 452 objects to send. (157 ms)
Rfatal: the remote end hung up unexpectedly
fatal: early EOFs: 81% (367/452)
fatal: index-pack failed
warning: unable to unlink '(NULL)': Invalid argument
So it hits some kind of error (looks like network disconnect) and tries
to back out; passed a NULL pointer to unlink().
Apologies if this has been submitted before. A search didn't find it.