same upper and lower case directory name?

We have a project with some with paths like tags/QA/nnnn that were
created manually - for a mostly windows application. Now we'd like
to start using an automated tagging process that wants to make
tags/qa/nnnn (all lower) consistently across projects. The repository
resides on a linux server. Is it possible for these pathnames to
co-exist without confusing case-insensitive clients?

-- 
   Les Mikesell
    lesmikesell_at_gmail.com