Cleaning ignored files

Hi,

I want to ask about git clean -dXf command behaviour.

I do the following:

$ mkdir gitignore_test
$ cd gitignore_test/
$ git init
Initialized empty Git repository in ~/gitignore_test/.git/

$ echo *.sln > .gitignore
$ git add .gitignore
$ git commit -m "add gitignore"
[master (root-commit) ef78a3c] add gitignore
 1 file changed, 1 insertion(+)
 create mode 100644 .gitignore

$ mkdir src
$ touch test.sln
$ touch src/test.sln
$ tree
.
├── src
│   └── test.sln
└── test.sln

1 directory, 2 files

$ git clean -dXf
Removing test.sln

$ tree
.
└── src
    └── test.sln

1 directory, 1 file


Why git clean -dXf does not remove all my test.sln files, but just one of them?

Roman Terekhov