version control - Git pull/clone gets new commits, but doesn't apply to working site files -

i have git versioning , development environment setup so:

• local.mydomain.com (local development)
• dev.mydomain.com (production testing)
• stage.mydomain.com (acceptance testing)
• mydomain.com (production environment)

my git repo setup on remote server /srv/repo/mydomain.git bare repo.

my local repo has been:

• git init(ed)
• git clone(d) remote repository (git clone user@domain:/repo/path/)

when want make changes code, make them on local development git repository. when changes completed run following:

• git add .
• git commit -a
• git push origin master

for production & acceptance testing, git pull origin master either dev or stage repo so:

• git pull origin master

it should noted code changes pushed local repo.

now have problem. have made whole lot of changes code in local repository..

• done git add .
• done git commit -a
• done git push origin master
• done git status, date

then on stage repo, have tried:

• git pull origin master , git clone origin master

it seems none of changes applied files.

when git status on local, dev or stage repos get, "# on branch master nothing commit, working directory clean". when "git log" on local, bare , stage repos see commits have done.

could me figure out why when pull origin master, changes applied repo, not working site files?

quite new git , appreciated!