error: unable to write new index file

[mastercoms]

Aborting the repo update because of an unknown error. Request help in #tech-support to resolve it, and please do not run UpdateProject until the issue is resolved.

On branch promoted
Your branch and 'origin/promoted' refer to different commits.
(use "git status --ahead-behind" for details)

Changes not staged for commit:
(use "git add/rm ..." to update what will be committed)
(use "git restore ..." to discard changes in working directory)

Need to restore state back

[mastercoms]

https://stackoverflow.com/questions/17843384/stash-changes-while-keeping-the-changes-in-the-working-directory-in-git/60557208#60557208