Git: cannot undo new file in folder with special name

[bpasero]

Steps to Reproduce:

1. create a new folder öäüß_!?
2. add a file within
3. from the git viewlet, undo the file add

=> does not work

Logs:

git for-each-ref --format %(refname) %(objectname) --sort -committerdate
git remote --verbose
git check-ignore -z --stdin
git clean -f -q -- /Users/bpasero/Desktop/test-ts/öäüß_!?/test.txt
git status -z -u
git symbolic-ref --short HEAD
git rev-parse master
git rev-parse --symbolic-full-name --abbrev-ref master@{u}
fatal: no upstream configured for branch 'master'

[joaomoreno]

I could swear you have created this issue in the past. Quite possibly with the same öäüß_!? string. Can't find it though.

[bpasero]

@joaomoreno yeah seems familiar :D

[marckassay]

Probably this one: #27901

[bpasero]

This one #24434