The newly created local branch, whether it is changing this branch or changing the master, the two will be automatically synchronized. Even if there is no add or commit, the changes will be automatically synchronized, and no prompt will be reported when switching (in the classmate's idea, The branch has been modified but there is no add or commit, which will prompt you when switching). The same applies to other projects. What is my situation? Is the idea set wrong somewhere?

I also discovered that all changes in all branches, including master, will be synchronized. I really want to curse, how could this be? Even if there is a problem with the idea settings, how can there be such a setting! Meaningless setting
Does anyone know? How annoying!