新手问题 为什么我的 Gemfile.lock 文件总是变？
什么都没做，没执行 bundle install，这个文件总是变，checkout -f 没几分钟又会变化
On branch develop
Your branch is up-to-date with 'origin/develop'.
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: Gemfile.lock
no changes added to commit (use "git add" and/or "git commit -a")
