[coreboot] failure cherry-picking patches from https://review.coreboot.org/coreboot

[Bensaid, Selma]

Hi,
We are observing since 3 days instabilities while cherry-picking patches from coreboot.org:
git fetch https://review.coreboot.org/coreboot refs/changes/40/52140/3 && git cherry-pick FETCH_HEAD
fatal: The remote end hung up unexpectedly
fatal: protocol error: bad pack header
This is happening on several machines, our automation is also impacted. Any change/issue that could explain such behavior?
Thanks,
Selma.