Steps to reproduce

1. Look at the hook for file_put_contents
2. Now look at the hooks for fopen and file_get_contents

Expected behaviour

All targets should look like this:

'target' => $this->getMountPoint() . '/' . $path

Actual behaviour

2/3 of targets looks like this:

'target' => $this->getMountPoint() . $path

@rullzer @PVince81