someting is not logical in the behaviour of git : suppose I have a project and a file in it I don't want to include initially in. so I put this file name in .gitignore now all is OK when I write "git status" : the file is ignored. but later I want this one be a part of my project. I delete in .gitignore the line that named this file. but now a "git status" command ignore always this file. what is wrong ? did I missed something ? thanks for any answer