Git already up to date unless I reset

问题:

I have a cloned repo I use for the live site and I have it pull from a bare repo. For some reason every time I execute "git pull" I get the already up to date message. But it's not up to date and not updated. If I do a git reset --hard HEAD^ and then git pull again, the changes come in.

What's the problem here and how do I fix it so that git pull will pull and merge changes in without needing a hard reset?

回答1:

That would be the case if are working on a DETACHED HEAD (see this SO question for more)

That happens when you checkout directly a SHA1 commit reference, for instance.