One file is in one place in the server's repo but in another in local ones.

Hi,
I have a problem, it may be a bug.
I have only one branch (master),
I pushed some changes when I moved one file to a folder that was
called in the same way than the original but in lowercase
lib/Imagine/Imagine.php => lib/imagine/Imagine.php,
Then I decided to move it back and removed the new folder and pushed
it in another commit.
so the file is like this: lib/Imagine/Imagine.php again, the lowercase
folder imagine exist no more
But now the repo has two folders Imagine and imagine, when I change
anything, the repo takes the changes: added a README file,
changed some lines in Imagine.php (the conflicted file), and
everything goes right, in my computers everything is in the place, but
in github or when I do a new clone, the file is in the wrong folder
(with the last changes ok, but in the wrong place) and is the only
thing that is not ok.
How can I test if this is a bug? how can I solve it if it isn't?
Thank you for your time!

--

alfonso.delaosa@gmail.com
Alfonso de la Osa