Let's Git Racy

log.txt

abraithwaite@jessie qwer]$ cat asdf.zip
version https://git-lfs.github.com/spec/v1
oid sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
size 0
[abraithwaite@jessie qwer]$ git status
On branch qwer
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        modified:   asdf.zip

no changes added to commit (use "git add" and/or "git commit -a")
[abraithwaite@jessie qwer]$ export GIT_TRACE=1 && /tmp/racy.sh
20:46:45.049927 git.c:349               trace: built-in: git 'checkout' 'master'
20:46:45.050562 run-command.c:341       trace: run_command: 'git lfs clean '\''asdf.zip'\'''
20:46:45.050757 run-command.c:192       trace: exec: '/bin/sh' '-c' 'git lfs clean '\''asdf.zip'\''' 'git lfs clean '\''asdf.zip'\'''
20:46:45.052309 git.c:554               trace: exec: 'git-lfs' 'clean' 'asdf.zip'
20:46:45.052373 run-command.c:341       trace: run_command: 'git-lfs' 'clean' 'asdf.zip'
trace git-lfs: run_command: 'git' version
M       asdf.zip
Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.
abraithwaite@jessie qwer]$ cat asdf.zip
version https://git-lfs.github.com/spec/v1
oid sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
size 0
[abraithwaite@jessie qwer]$ git checkout .
21:15:52.732496 git.c:349               trace: built-in: git 'checkout' '.'
21:15:52.734881 run-command.c:341       trace: run_command: 'git lfs smudge '\''asdf.zip'\'''
21:15:52.735200 run-command.c:192       trace: exec: '/bin/sh' '-c' 'git lfs smudge '\''asdf.zip'\''' 'git lfs smudge '\''asdf.zip'\'''
21:15:52.736800 git.c:554               trace: exec: 'git-lfs' 'smudge' 'asdf.zip'
21:15:52.736839 run-command.c:341       trace: run_command: 'git-lfs' 'smudge' 'asdf.zip'
trace git-lfs: run_command: 'git' version
[abraithwaite@jessie qwer]$ cat asdf.zip
[abraithwaite@jessie qwer]$

racy.sh

$ cat /tmp/racy.sh
#!/bin/bash
touch asdf.zip # update st_mtime to now
git checkout master